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23139082668 = 22313971529149
BaseRepresentation
bin10101100011001100…
…100110000110101100
32012201121021012010210
4111203030212012230
5334342101121133
614344022502420
71446256646262
oct254314460654
965647235123
1023139082668
1198a4455319
124599294a10
132249b37ac0
141197174432
15906634763
hex5633261ac

23139082668 has 48 divisors (see below), whose sum is σ = 58743826400. Its totient is φ = 7046313984.

The previous prime is 23139082657. The next prime is 23139082709. The reversal of 23139082668 is 86628093132.

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, 749443 + ... + 779706.

Almost surely, 223139082668 is an apocalyptic number.

It is an amenable number.

23139082668 is an abundant number, since it is smaller than the sum of its proper divisors (35604743732).

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

23139082668 is a wasteful number, since it uses less digits than its factorization.

23139082668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1529266 (or 1529264 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 48.

The spelling of 23139082668 in words is "twenty-three billion, one hundred thirty-nine million, eighty-two thousand, six hundred sixty-eight".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 97 156 194 291 388 582 1164 1261 2522 3783 5044 7566 15132 1529149 3058298 4587447 6116596 9174894 18349788 19878937 39757874 59636811 79515748 119273622 148327453 238547244 296654906 444982359 593309812 889964718 1779929436 1928256889 3856513778 5784770667 7713027556 11569541334 23139082668