Base | Representation |
---|---|
bin | 110101011101100010… |
… | …000101011000010100 |
3 | 12111011120100201100110 |
4 | 311131202011120110 |
5 | 1420030332301433 |
6 | 42212042243020 |
7 | 4101343112604 |
oct | 653542053024 |
9 | 174146321313 |
10 | 57403790868 |
11 | 22387a41786 |
12 | b1604b6470 |
13 | 554a913878 |
14 | 2ac7b5ac04 |
15 | 175e870963 |
hex | d5d885614 |
57403790868 has 12 divisors (see below), whose sum is σ = 133942178720. Its totient is φ = 19134596952.
The previous prime is 57403790867. The next prime is 57403790959. The reversal of 57403790868 is 86809730475.
It is a tau number, because it is divible by the number of its divisors (12).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (57403790867) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2391824608 + ... + 2391824631.
Almost surely, 257403790868 is an apocalyptic number.
It is an amenable number.
57403790868 is an abundant number, since it is smaller than the sum of its proper divisors (76538387852).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
57403790868 is a wasteful number, since it uses less digits than its factorization.
57403790868 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4783649246 (or 4783649244 counting only the distinct ones).
The product of its (nonzero) digits is 10160640, while the sum is 57.
The spelling of 57403790868 in words is "fifty-seven billion, four hundred three million, seven hundred ninety thousand, eight hundred sixty-eight".
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