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13137780356 = 2219172865531
BaseRepresentation
bin11000011110001001…
…01001111010000100
31020220121001101120122
430033010221322010
5203401232432411
610011352121112
7643365201431
oct141704517204
936817041518
1013137780356
115631a30918
122667996198
131314ab293c
148c8b92b88
1551d5ba9db
hex30f129e84

13137780356 has 12 divisors (see below), whose sum is σ = 24201174480. Its totient is φ = 6223159080.

The previous prime is 13137780287. The next prime is 13137780367. The reversal of 13137780356 is 65308773131.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 86432690 + ... + 86432841.

It is an arithmetic number, because the mean of its divisors is an integer number (2016764540).

Almost surely, 213137780356 is an apocalyptic number.

It is an amenable number.

13137780356 is a deficient number, since it is larger than the sum of its proper divisors (11063394124).

13137780356 is a wasteful number, since it uses less digits than its factorization.

13137780356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172865554 (or 172865552 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 44.

The spelling of 13137780356 in words is "thirteen billion, one hundred thirty-seven million, seven hundred eighty thousand, three hundred fifty-six".

Divisors: 1 2 4 19 38 76 172865531 345731062 691462124 3284445089 6568890178 13137780356