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57997166944 = 251812411467
BaseRepresentation
bin110110000000111001…
…101000100101100000
312112200220220100022011
4312000321220211200
51422234233320234
642351000322304
74122136533163
oct660071504540
9175626810264
1057997166944
1122661985a32
12b2a7173394
135613830482
142b4289bada
1517969d0b64
hexd80e68960

57997166944 has 12 divisors (see below), whose sum is σ = 114181922484. Its totient is φ = 28998583456.

The previous prime is 57997166933. The next prime is 57997166989. The reversal of 57997166944 is 44966179975.

It is a self number, because there is not a number n which added to its sum of digits gives 57997166944.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 906205702 + ... + 906205765.

It is an arithmetic number, because the mean of its divisors is an integer number (9515160207).

Almost surely, 257997166944 is an apocalyptic number.

It is an amenable number.

57997166944 is a deficient number, since it is larger than the sum of its proper divisors (56184755540).

57997166944 is a wasteful number, since it uses less digits than its factorization.

57997166944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1812411477 (or 1812411469 counting only the distinct ones).

The product of its digits is 102876480, while the sum is 67.

The spelling of 57997166944 in words is "fifty-seven billion, nine hundred ninety-seven million, one hundred sixty-six thousand, nine hundred forty-four".

Divisors: 1 2 4 8 16 32 1812411467 3624822934 7249645868 14499291736 28998583472 57997166944