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57387684366 = 23235961914347
BaseRepresentation
bin110101011100100100…
…101001001000001110
312111010110001102101100
4311130210221020032
51420012221344431
642210305123530
74101056161065
oct653444511016
9174113042340
1057387684366
1122379940721
12b1570295a6
1355474946ac
142ac59671dc
15175d23d4e6
hexd5c92920e

57387684366 has 48 divisors (see below), whose sum is σ = 124896470400. Its totient is φ = 19043798544.

The previous prime is 57387684337. The next prime is 57387684391. The reversal of 57387684366 is 66348678375.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3992805 + ... + 4007151.

It is an arithmetic number, because the mean of its divisors is an integer number (2602009800).

Almost surely, 257387684366 is an apocalyptic number.

57387684366 is an abundant number, since it is smaller than the sum of its proper divisors (67508786034).

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

57387684366 is a wasteful number, since it uses less digits than its factorization.

57387684366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15333 (or 15330 counting only the distinct ones).

The product of its digits is 121927680, while the sum is 63.

The spelling of 57387684366 in words is "fifty-seven billion, three hundred eighty-seven million, six hundred eighty-four thousand, three hundred sixty-six".

Divisors: 1 2 3 6 9 18 359 619 718 1077 1238 1857 2154 3231 3714 5571 6462 11142 14347 28694 43041 86082 129123 222221 258246 444442 666663 1333326 1999989 3999978 5150573 8880793 10301146 15451719 17761586 26642379 30903438 46355157 53284758 79927137 92710314 159854274 3188204687 6376409374 9564614061 19129228122 28693842183 57387684366