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57764904960 = 215357103163
BaseRepresentation
bin110101110011000011…
…101000000000000000
312112002201212012202110
4311303003220000000
51421300303424320
642311542215320
74113316406430
oct656303500000
9175081765673
1057764904960
1122552868084
12b241424540
1355a768b749
142b1dabc2c0
1517814025e0
hexd730e8000

57764904960 has 512 divisors, whose sum is σ = 214610872320. Its totient is φ = 12995002368.

The previous prime is 57764904941. The next prime is 57764904971. The reversal of 57764904960 is 6940946775.

It is a tau number, because it is divible by the number of its divisors (512).

It is a self number, because there is not a number n which added to its sum of digits gives 57764904960.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 354385839 + ... + 354386001.

It is an arithmetic number, because the mean of its divisors is an integer number (419161860).

Almost surely, 257764904960 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 57764904960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107305436160).

57764904960 is an abundant number, since it is smaller than the sum of its proper divisors (156845967360).

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

57764904960 is a wasteful number, since it uses less digits than its factorization.

57764904960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311 (or 283 counting only the distinct ones).

The product of its (nonzero) digits is 11430720, while the sum is 57.

The spelling of 57764904960 in words is "fifty-seven billion, seven hundred sixty-four million, nine hundred four thousand, nine hundred sixty".