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12318875972 = 2213594015279
BaseRepresentation
bin10110111100100001…
…10010000101000100
31011210112010201221122
423132100302011010
5200212113012342
65354220133112
7614162501204
oct133620620504
934715121848
1012318875972
115251758937
122479697198
131214241230
1484c106404
154c175c4d2
hex2de432144

12318875972 has 24 divisors (see below), whose sum is σ = 23609846400. Its totient is φ = 5589266976.

The previous prime is 12318875953. The next prime is 12318876013. The reversal of 12318875972 is 27957881321.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2004572 + ... + 2010707.

It is an arithmetic number, because the mean of its divisors is an integer number (983743600).

Almost surely, 212318875972 is an apocalyptic number.

It is an amenable number.

12318875972 is a deficient number, since it is larger than the sum of its proper divisors (11290970428).

12318875972 is a wasteful number, since it uses less digits than its factorization.

12318875972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4015355 (or 4015353 counting only the distinct ones).

The product of its digits is 1693440, while the sum is 53.

The spelling of 12318875972 in words is "twelve billion, three hundred eighteen million, eight hundred seventy-five thousand, nine hundred seventy-two".

Divisors: 1 2 4 13 26 52 59 118 236 767 1534 3068 4015279 8030558 16061116 52198627 104397254 208794508 236901461 473802922 947605844 3079718993 6159437986 12318875972