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12507695407 = 61673060361
BaseRepresentation
bin10111010011000010…
…00100100100101111
31012021200102202112001
423221201010210233
5201103432223112
65425043153131
7621644441164
oct135141044457
935250382461
1012507695407
1153392a4759
1225109757a7
1312443b24cc
1486921806b
154d3108c57
hex2e984492f

12507695407 has 8 divisors (see below), whose sum is σ = 12902486192. Its totient is φ = 12119025600.

The previous prime is 12507695401. The next prime is 12507695411. The reversal of 12507695407 is 70459670521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12507695407 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12507695401) 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, 1526094 + ... + 1534267.

It is an arithmetic number, because the mean of its divisors is an integer number (1612810774).

Almost surely, 212507695407 is an apocalyptic number.

12507695407 is a deficient number, since it is larger than the sum of its proper divisors (394790785).

12507695407 is an equidigital number, since it uses as much as digits as its factorization.

12507695407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3060489.

The product of its (nonzero) digits is 529200, while the sum is 46.

The spelling of 12507695407 in words is "twelve billion, five hundred seven million, six hundred ninety-five thousand, four hundred seven".

Divisors: 1 61 67 4087 3060361 186682021 205044187 12507695407