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12651795125 = 53163620947
BaseRepresentation
bin10111100100001101…
…10001001010110101
31012122201120210011122
423302012301022311
5201402324421000
65451231513325
7625344325034
oct136206611265
935581523148
1012651795125
115402676a32
122551088845
1312681c6908
1488040871b
154e0ac0085
hex2f21b12b5

12651795125 has 16 divisors (see below), whose sum is σ = 15886333632. Its totient is φ = 10059325200.

The previous prime is 12651795119. The next prime is 12651795187. The reversal of 12651795125 is 52159715621.

12651795125 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 12651795125 - 24 = 12651795109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 290099 + ... + 330848.

It is an arithmetic number, because the mean of its divisors is an integer number (992895852).

Almost surely, 212651795125 is an apocalyptic number.

It is an amenable number.

12651795125 is a deficient number, since it is larger than the sum of its proper divisors (3234538507).

12651795125 is an equidigital number, since it uses as much as digits as its factorization.

12651795125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 621125 (or 621115 counting only the distinct ones).

The product of its digits is 189000, while the sum is 44.

The spelling of 12651795125 in words is "twelve billion, six hundred fifty-one million, seven hundred ninety-five thousand, one hundred twenty-five".

Divisors: 1 5 25 125 163 815 4075 20375 620947 3104735 15523675 77618375 101214361 506071805 2530359025 12651795125