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13207645427 = 191375074009
BaseRepresentation
bin11000100110011110…
…01010110011110011
31021002110111220102212
430103033022303303
5204022124123202
610022325402335
7645204063614
oct142317126363
937073456385
1013207645427
11566840a549
1226872693ab
131326404c12
148d417bc0b
155247bb652
hex3133cacf3

13207645427 has 8 divisors (see below), whose sum is σ = 14004267600. Its totient is φ = 12421171584.

The previous prime is 13207645411. The next prime is 13207645441. The reversal of 13207645427 is 72454670231.

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 13207645427 - 24 = 13207645411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13207645447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2534402 + ... + 2539607.

It is an arithmetic number, because the mean of its divisors is an integer number (1750533450).

Almost surely, 213207645427 is an apocalyptic number.

13207645427 is a deficient number, since it is larger than the sum of its proper divisors (796622173).

13207645427 is a wasteful number, since it uses less digits than its factorization.

13207645427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5074165.

The product of its (nonzero) digits is 282240, while the sum is 41.

The spelling of 13207645427 in words is "thirteen billion, two hundred seven million, six hundred forty-five thousand, four hundred twenty-seven".

Divisors: 1 19 137 2603 5074009 96406171 695139233 13207645427