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12512700756257 = 134871976417747
BaseRepresentation
bin1011011000010101011100…
…0101010111000100100001
31122022012110122000002020212
42312011113011113010201
53120002002343200012
642340131054343505
72431004250356642
oct266052705270441
948265418002225
1012512700756257
113a9467440a479
1214a10661bab95
136c9c33c17840
143138919136c9
1516a73da95b22
hexb6157157121

12512700756257 has 8 divisors (see below), whose sum is σ = 13502886054336. Its totient is φ = 11526468294672.

The previous prime is 12512700756253. The next prime is 12512700756271. The reversal of 12512700756257 is 75265700721521.

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 12512700756257 - 22 = 12512700756253 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12512700756253) 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, 988202543 + ... + 988215204.

It is an arithmetic number, because the mean of its divisors is an integer number (1687860756792).

Almost surely, 212512700756257 is an apocalyptic number.

It is an amenable number.

12512700756257 is a deficient number, since it is larger than the sum of its proper divisors (990185298079).

12512700756257 is a wasteful number, since it uses less digits than its factorization.

12512700756257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1976418247.

The product of its (nonzero) digits is 2058000, while the sum is 50.

The spelling of 12512700756257 in words is "twelve trillion, five hundred twelve billion, seven hundred million, seven hundred fifty-six thousand, two hundred fifty-seven".

Divisors: 1 13 487 6331 1976417747 25693430711 962515442789 12512700756257