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13125064626 = 232729170257
BaseRepresentation
bin11000011100101000…
…01001011110110010
31020212201010100212200
430032110021132302
5203340004032001
610010215404030
7643152131352
oct141624113662
936781110780
1013125064626
115625836353
122663683616
13131227cc3b
148c7202b62
1551c408086
hex30e5097b2

13125064626 has 12 divisors (see below), whose sum is σ = 28437640062. Its totient is φ = 4375021536.

The previous prime is 13125064621. The next prime is 13125064651. The reversal of 13125064626 is 62646052131.

13125064626 is a `hidden beast` number, since 1 + 3 + 1 + 2 + 5 + 0 + 646 + 2 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 9850364001 + 3274700625 = 99249^2 + 57225^2 .

It is not an unprimeable number, because it can be changed into a prime (13125064621) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 364585111 + ... + 364585146.

Almost surely, 213125064626 is an apocalyptic number.

13125064626 is an abundant number, since it is smaller than the sum of its proper divisors (15312575436).

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

13125064626 is a wasteful number, since it uses less digits than its factorization.

13125064626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 729170265 (or 729170262 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The spelling of 13125064626 in words is "thirteen billion, one hundred twenty-five million, sixty-four thousand, six hundred twenty-six".

Divisors: 1 2 3 6 9 18 729170257 1458340514 2187510771 4375021542 6562532313 13125064626