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12927997698 = 2371127982679
BaseRepresentation
bin11000000101001000…
…11001011100000010
31020100222022022212120
430002210121130002
5202434031411243
65534455505110
7635240111250
oct140244313402
936328268776
1012927997698
115534577020
122609688196
1312b04b19a5
148a8d855d0
15509e7cc83
hex302919702

12927997698 has 32 divisors (see below), whose sum is σ = 32236047360. Its totient is φ = 3357921360.

The previous prime is 12927997679. The next prime is 12927997703. The reversal of 12927997698 is 89679972921.

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, 13990878 + ... + 13991801.

It is an arithmetic number, because the mean of its divisors is an integer number (1007376480).

Almost surely, 212927997698 is an apocalyptic number.

12927997698 is an abundant number, since it is smaller than the sum of its proper divisors (19308049662).

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

12927997698 is a wasteful number, since it uses less digits than its factorization.

12927997698 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27982702.

The product of its digits is 61725888, while the sum is 69.

The spelling of 12927997698 in words is "twelve billion, nine hundred twenty-seven million, nine hundred ninety-seven thousand, six hundred ninety-eight".

Divisors: 1 2 3 6 7 11 14 21 22 33 42 66 77 154 231 462 27982679 55965358 83948037 167896074 195878753 307809469 391757506 587636259 615618938 923428407 1175272518 1846856814 2154666283 4309332566 6463998849 12927997698