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12939614806 = 2291391605013
BaseRepresentation
bin11000000110100001…
…01101101001010110
31020101210011112112211
430003100231221112
5203000020133211
65535552504034
7635440624336
oct140320555126
936353145484
1012939614806
115540091138
12261154b01a
1312b2a1b611
148aa72b0c6
1550aec4e21
hex30342da56

12939614806 has 16 divisors (see below), whose sum is σ = 20223176400. Its totient is φ = 6201766368.

The previous prime is 12939614761. The next prime is 12939614819. The reversal of 12939614806 is 60841693921.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 12939614806.

It is a congruent number.

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, 794445 + ... + 810568.

It is an arithmetic number, because the mean of its divisors is an integer number (1263948525).

Almost surely, 212939614806 is an apocalyptic number.

12939614806 is a deficient number, since it is larger than the sum of its proper divisors (7283561594).

12939614806 is a wasteful number, since it uses less digits than its factorization.

12939614806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1605183.

The product of its (nonzero) digits is 559872, while the sum is 49.

The spelling of 12939614806 in words is "twelve billion, nine hundred thirty-nine million, six hundred fourteen thousand, eight hundred six".

Divisors: 1 2 29 58 139 278 4031 8062 1605013 3210026 46545377 93090754 223096807 446193614 6469807403 12939614806