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10012742725 = 5210912972833
BaseRepresentation
bin10010101001100111…
…00101010001000101
3221211210202000212011
421110303211101011
5131001230231400
64333315454221
7503060623516
oct112463452105
927753660764
1010012742725
114278a28897
121b352b7371
13c3752c54b
146adb1ca0d
153d90788ba
hex254ce5445

10012742725 has 24 divisors (see below), whose sum is σ = 12543794120. Its totient is φ = 7927787520.

The previous prime is 10012742699. The next prime is 10012742771. The reversal of 10012742725 is 52724721001.

It can be written as a sum of positive squares in 12 ways, for example, as 149670756 + 9863071969 = 12234^2 + 99313^2 .

It is not a de Polignac number, because 10012742725 - 233 = 1422808133 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3532909 + ... + 3535741.

Almost surely, 210012742725 is an apocalyptic number.

It is an amenable number.

10012742725 is a deficient number, since it is larger than the sum of its proper divisors (2531051395).

10012742725 is a wasteful number, since it uses less digits than its factorization.

10012742725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4249 (or 4244 counting only the distinct ones).

The product of its (nonzero) digits is 7840, while the sum is 31.

The spelling of 10012742725 in words is "ten billion, twelve million, seven hundred forty-two thousand, seven hundred twenty-five".

Divisors: 1 5 25 109 545 1297 2725 2833 6485 14165 32425 70825 141373 308797 706865 1543985 3534325 3674401 7719925 18372005 91860025 400509709 2002548545 10012742725