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57149568000 = 2103253719373
BaseRepresentation
bin110101001110011000…
…010011010000000000
312110111211222212010200
4311032120103100000
51414020242134000
642130521325200
74062135212220
oct651630232000
9173454885120
1057149568000
1122267494338
12b0ab336800
13550a053035
142aa20a2080
1517473a5500
hexd4e613400

57149568000 has 1056 divisors, whose sum is σ = 248414749440. Its totient is φ = 12342067200.

The previous prime is 57149567983. The next prime is 57149568013. The reversal of 57149568000 is 86594175.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 153215814 + ... + 153216186.

It is an arithmetic number, because the mean of its divisors is an integer number (235241240).

Almost surely, 257149568000 is an apocalyptic number.

57149568000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57149568000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (124207374720).

57149568000 is an abundant number, since it is smaller than the sum of its proper divisors (191265181440).

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

57149568000 is a wasteful number, since it uses less digits than its factorization.

57149568000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 440 (or 409 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 45.

The spelling of 57149568000 in words is "fifty-seven billion, one hundred forty-nine million, five hundred sixty-eight thousand".