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13123856051 = 232186326099
BaseRepresentation
bin11000011100011111…
…00010011010110011
31020212121211222000122
430032033202122303
5203334201343201
610010133440455
7643135635665
oct141617423263
936777758018
1013123856051
115625090329
1226631a012b
131311c48ac7
148c6daa535
1551c269e1b
hex30e3e26b3

13123856051 has 8 divisors (see below), whose sum is σ = 13695609600. Its totient is φ = 12552198472.

The previous prime is 13123856033. The next prime is 13123856059. The reversal of 13123856051 is 15065832131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13123856051 - 210 = 13123855027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13123856059) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 489800 + ... + 515898.

It is an arithmetic number, because the mean of its divisors is an integer number (1711951200).

Almost surely, 213123856051 is an apocalyptic number.

13123856051 is a deficient number, since it is larger than the sum of its proper divisors (571753549).

13123856051 is a wasteful number, since it uses less digits than its factorization.

13123856051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47985.

The product of its (nonzero) digits is 21600, while the sum is 35.

The spelling of 13123856051 in words is "thirteen billion, one hundred twenty-three million, eight hundred fifty-six thousand, fifty-one".

Divisors: 1 23 21863 26099 502849 600277 570602437 13123856051