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12625231401 = 331792612297
BaseRepresentation
bin10111100001000010…
…11011111000101001
31012120212121012121000
423300201123320221
5201324024401101
65444442305213
7624602460546
oct136041337051
935525535530
1012625231401
115399683242
1225441b8209
131262855a33
1487aa91bcd
154dd5c4486
hex2f085be29

12625231401 has 16 divisors (see below), whose sum is σ = 18808545600. Its totient is φ = 8369796384.

The previous prime is 12625231387. The next prime is 12625231429. The reversal of 12625231401 is 10413252621.

12625231401 is a `hidden beast` number, since 1 + 2 + 6 + 25 + 231 + 401 = 666.

12625231401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12625231401 - 218 = 12624969257 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12625231471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1301316 + ... + 1310981.

It is an arithmetic number, because the mean of its divisors is an integer number (1175534100).

Almost surely, 212625231401 is an apocalyptic number.

It is an amenable number.

12625231401 is a deficient number, since it is larger than the sum of its proper divisors (6183314199).

12625231401 is a wasteful number, since it uses less digits than its factorization.

12625231401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2612485 (or 2612479 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The spelling of 12625231401 in words is "twelve billion, six hundred twenty-five million, two hundred thirty-one thousand, four hundred one".

Divisors: 1 3 9 27 179 537 1611 4833 2612297 7836891 23510673 70532019 467601163 1402803489 4208410467 12625231401