Base | Representation |
---|---|
bin | 110101001110101101… |
… | …000001011101100001 |
3 | 12110112020012211122211 |
4 | 311032231001131201 |
5 | 1414023140001121 |
6 | 42131234002121 |
7 | 4062232325350 |
oct | 651655013541 |
9 | 173466184584 |
10 | 57155000161 |
11 | 2226a564626 |
12 | b0b1116341 |
13 | 550b20572c |
14 | 2aa2ab7997 |
15 | 1747ac9ce1 |
hex | d4eb41761 |
57155000161 has 16 divisors (see below), whose sum is σ = 72169415424. Its totient is φ = 44103527424.
The previous prime is 57155000129. The next prime is 57155000197. The reversal of 57155000161 is 16100055175.
57155000161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a cyclic number.
It is not a de Polignac number, because 57155000161 - 25 = 57155000129 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (57155009161) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10438440 + ... + 10443913.
It is an arithmetic number, because the mean of its divisors is an integer number (4510588464).
Almost surely, 257155000161 is an apocalyptic number.
It is an amenable number.
57155000161 is a deficient number, since it is larger than the sum of its proper divisors (15014415263).
57155000161 is a wasteful number, since it uses less digits than its factorization.
57155000161 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 20882400.
The product of its (nonzero) digits is 5250, while the sum is 31.
The spelling of 57155000161 in words is "fifty-seven billion, one hundred fifty-five million, one hundred sixty-one", and thus it is an aban number.
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