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16931920282 = 2531572773673
BaseRepresentation
bin11111100010011100…
…01001100110011010
31121201000101200002121
433301032021212122
5234134032422112
611440045451454
71136405643034
oct176116114632
947630350077
1016931920282
1171a969a352
123346570b8a
13179ab77954
14b68a3ac54
1569172a407
hex3f138999a

16931920282 has 32 divisors (see below), whose sum is σ = 26143037712. Its totient is φ = 8221284864.

The previous prime is 16931920273. The next prime is 16931920303. The reversal of 16931920282 is 28202913961.

It can be written as a sum of positive squares in 8 ways, for example, as 1996391761 + 14935528521 = 44681^2 + 122211^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4607998 + ... + 4611670.

Almost surely, 216931920282 is an apocalyptic number.

16931920282 is a deficient number, since it is larger than the sum of its proper divisors (9211117430).

16931920282 is a wasteful number, since it uses less digits than its factorization.

16931920282 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4162.

The product of its (nonzero) digits is 93312, while the sum is 43.

The spelling of 16931920282 in words is "sixteen billion, nine hundred thirty-one million, nine hundred twenty thousand, two hundred eighty-two".

Divisors: 1 2 53 106 157 277 314 554 3673 7346 8321 14681 16642 29362 43489 86978 194669 389338 576661 1017421 1153322 2034842 2304917 4609834 30563033 53923313 61126066 107846626 159735097 319470194 8465960141 16931920282