Base | Representation |
---|---|
bin | 110101111000011010… |
… | …100101111110100100 |
3 | 12112100000000222010100 |
4 | 311320122211332210 |
5 | 1421441312441233 |
6 | 42324513224100 |
7 | 4115460534324 |
oct | 657032457644 |
9 | 175300028110 |
10 | 57854812068 |
11 | 22599595679 |
12 | b267562030 |
13 | 55c01aa311 |
14 | 2b2ba03284 |
15 | 1789261813 |
hex | d786a5fa4 |
57854812068 has 72 divisors (see below), whose sum is σ = 148436608320. Its totient is φ = 18996304320.
The previous prime is 57854812039. The next prime is 57854812079. The reversal of 57854812068 is 86021845875.
57854812068 is a `hidden beast` number, since 5 + 7 + 85 + 481 + 20 + 68 = 666.
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3024438 + ... + 3043506.
It is an arithmetic number, because the mean of its divisors is an integer number (2061619560).
Almost surely, 257854812068 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 57854812068, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74218304160).
57854812068 is an abundant number, since it is smaller than the sum of its proper divisors (90581796252).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
57854812068 is a wasteful number, since it uses less digits than its factorization.
57854812068 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 20337 (or 20332 counting only the distinct ones).
The product of its (nonzero) digits is 4300800, while the sum is 54.
The spelling of 57854812068 in words is "fifty-seven billion, eight hundred fifty-four million, eight hundred twelve thousand, sixty-eight".
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