Base | Representation |
---|---|
bin | 1101100101111… |
… | …0000000100001 |
3 | 10222021022111101 |
4 | 3121132000201 |
5 | 104043230121 |
6 | 5353514401 |
7 | 1261363360 |
oct | 331360041 |
9 | 128238441 |
10 | 57008161 |
11 | 2a1a8091 |
12 | 17112a01 |
13 | ba70252 |
14 | 77dd7d7 |
15 | 5011491 |
hex | 365e021 |
57008161 has 16 divisors (see below), whose sum is σ = 66495744. Its totient is φ = 47867904.
The previous prime is 57008129. The next prime is 57008173. The reversal of 57008161 is 16180075.
It is a happy number.
It is not a de Polignac number, because 57008161 - 25 = 57008129 is a prime.
It is not an unprimeable number, because it can be changed into a prime (57008111) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76356 + ... + 77098.
It is an arithmetic number, because the mean of its divisors is an integer number (4155984).
Almost surely, 257008161 is an apocalyptic number.
It is an amenable number.
57008161 is a deficient number, since it is larger than the sum of its proper divisors (9487583).
57008161 is a wasteful number, since it uses less digits than its factorization.
57008161 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 960.
The product of its (nonzero) digits is 1680, while the sum is 28.
The square root of 57008161 is about 7550.3748913547. The cubic root of 57008161 is about 384.8684792791.
It can be divided in two parts, 5700 and 8161, that added together give a triangular number (13861 = T166).
The spelling of 57008161 in words is "fifty-seven million, eight thousand, one hundred sixty-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.083 sec. • engine limits •