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57089978496 = 273316519091
BaseRepresentation
bin110101001010110100…
…111111000010000000
312110100200212101201000
4311022310333002000
51413410013302441
642120552212000
74060512544665
oct651264770200
9173320771630
1057089978496
1122236893911
12b09339a000
1354ca8bab85
142a981cda6c
1517420342b6
hexd4ad3f080

57089978496 has 64 divisors (see below), whose sum is σ = 168494738400. Its totient is φ = 19029991680.

The previous prime is 57089978453. The next prime is 57089978497. The reversal of 57089978496 is 69487998075.

57089978496 is a `hidden beast` number, since 57 + 0 + 89 + 9 + 7 + 8 + 496 = 666.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (72).

It is not an unprimeable number, because it can be changed into a prime (57089978497) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8256090 + ... + 8263001.

Almost surely, 257089978496 is an apocalyptic number.

It is an amenable number.

57089978496 is an abundant number, since it is smaller than the sum of its proper divisors (111404759904).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

57089978496 is a wasteful number, since it uses less digits than its factorization.

57089978496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16519114 (or 16519096 counting only the distinct ones).

The product of its (nonzero) digits is 274337280, while the sum is 72.

The spelling of 57089978496 in words is "fifty-seven billion, eighty-nine million, nine hundred seventy-eight thousand, four hundred ninety-six".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 32 36 48 54 64 72 96 108 128 144 192 216 288 384 432 576 864 1152 1728 3456 16519091 33038182 49557273 66076364 99114546 132152728 148671819 198229092 264305456 297343638 396458184 446015457 528610912 594687276 792916368 892030914 1057221824 1189374552 1585832736 1784061828 2114443648 2378749104 3171665472 3568123656 4757498208 6343330944 7136247312 9514996416 14272494624 19029992832 28544989248 57089978496