1271561 (number)
1,271,561 (one million two hundred seventyone thousand five hundred sixtyone) is an odd sevendigits prime number following 1271560 and preceding 1271562. In scientific notation, it is written as 1.271561 × 10^{6}. The sum of its digits is 23. It has a total of 1 prime factor and 2 positive divisors. There are 1,271,560 positive integers (up to 1271561) that are relatively prime to 1271561.
Basic properties
 Is Prime? Yes
 Number parity Odd
 Number length 7
 Sum of Digits 23
 Digital Root 5
Name
Short name  1 million 271 thousand 561 

Full name  one million two hundred seventyone thousand five hundred sixtyone 
Notation
Scientific notation  1.271561 × 10^{6} 

Engineering notation  1.271561 × 10^{6} 
Prime Factorization of 1271561
Prime Factorization 1271561
Prime numberω(n)  Distinct Factors  1  Total number of distinct prime factors 

Ω(n)  Total Factors  1  Total number of prime factors 
rad(n)  Radical  1271561  Product of the distinct prime numbers 
λ(n)  Liouville Lambda  1  Returns the parity of Ω(n), such that λ(n) = (1)^{Ω(n)} 
μ(n)  Mobius Mu  1  Returns:

Λ(n)  Mangoldt function  14.055755837526  Returns log(p) if n is a power p^{k} of any prime p (for any k >= 1), else returns 0 
The prime factorization of 1,271,561 is 1271561. Since it has a total of 1 prime factor, 1,271,561 is a prime number.
Divisors of 1271561
2 divisors
τ(n)  Total Divisors  2  Total number of the positive divisors of n 

σ(n)  Sum of Divisors  1271562  Sum of all the positive divisors of n 
s(n)  Aliquot Sum  1  Sum of the proper positive divisors of n 
A(n)  Arithmetic Mean  635781  Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n)) 
G(n)  Geometric Mean  1127.6351360258  Returns the nth root of the product of n divisors 
H(n)  Harmonic Mean  1.9999984271314  Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors 
The number 1,271,561 can be divided by 2 positive divisors (out of which 0 are even, and 2 are odd). The sum of these divisors (counting 1,271,561) is 1,271,562, the average is 635,781.
Other Arithmetic Functions (n = 1271561)
φ(n)  Euler Totient  1271560  Total number of positive integers not greater than n that are coprime to n 

λ(n)  Carmichael Lambda  1271560  Smallest positive number such that a^{λ(n)} ≡ 1 (mod n) for all a coprime to n 
π(n)  Prime Pi  ≈ 97776  Total number of primes less than or equal to n 
r_{2}(n)  Sum of 2 squares  8  The number of ways n can be represented as the sum of 2 squares 
There are 1,271,560 positive integers (less than 1,271,561) that are coprime with 1,271,561. And there are approximately 97,776 prime numbers less than or equal to 1,271,561.
Divisibility of 1271561
m  2  3  4  5  6  7  8  9 

n mod m  1  2  1  1  5  4  1  5 
1,271,561 is not divisible by any number less than or equal to 9.
Classification of 1271561
By Arithmetic functions
 Arithmetic
 Prime
 Deficient
Expressible via specific sums
 Polite
By Powers
 Prime Power
 Square Free
Base conversion (1271561)
Base  System  Value 

2  Binary  100110110011100001001 
3  Ternary  2101121020212 
4  Quaternary  10312130021 
5  Quinary  311142221 
6  Senary  43130505 
8  Octal  4663411 
10  Decimal  1271561 
12  Duodecimal  513a35 
16  Hexadecimal  136709 
20  Vigesimal  7iii1 
36  Base36  r955 
Basic calculations (n = 1271561)
Multiplication
n×yn×2  2543122 

n×3  3814683 
n×4  5086244 
n×5  6357805 
Division
n÷yn÷2  635780.500 

n÷3  423853.666 
n÷4  317890.250 
n÷5  254312.200 
Exponentiation
n^{y}n^{2}  1616867376721 

n^{3}  2055945498410731481 
n^{4}  2614260113904648132711841 
n^{5}  3324191204696708284279201253801 
Nth Root
^{y}√n^{2}√n  1127.6351360258 

^{3}√n  108.33756406883 
^{4}√n  33.580278974807 
^{5}√n  16.629050026751 
1271561 as geometric shapes
Circle
Radius = nDiameter  2543122 

Circumference  7989453.3923826 
Area  5079538672535.7 
Sphere
Radius = nVolume  8.6119243653175E+18 

Surface area  20318154690143 
Circumference  7989453.3923826 
Square
Length = nPerimeter  5086244 

Area  1616867376721 
Diagonal  1798258.8115847 
Cube
Length = nSurface area  9701204260326 

Volume  2055945498410731481 
Space diagonal  2202408.2569231 
Equilateral Triangle
Length = nPerimeter  3814683 

Area  700124111395.34 
Altitude  1101204.1284615 
Triangular Pyramid
Length = nSurface area  2800496445581.4 

Volume  2.422955006127E+17 
Height  1038225.208941 
Cryptographic Hash Functions
md5  41c9c4140bbe7495080e567f9185f831 

sha1  7fab23f3323d8027208fdd786a40162dae46d841 
sha256  98bf4323915cc5a9de1c6eab1aedf04b3971c440d2dead95bf74ccaa43877ae7 
sha512  6d5bb29a22170848a8773c8e68c02f99e8af743cea92b60c7b98d9996001ed805e9ae26514709879866ae1ab4d807f23dde82c6182797b5008bce1dd97b7f38f 
ripemd160  58aabe1785583a8c2d3a30435bf1e964c18e6896 