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12769302125 = 53102154417
BaseRepresentation
bin10111110010001110…
…00001011001101101
31012221220200202110202
423321013001121231
5202122420132000
65511030243245
7631302164036
oct137107013155
935856622422
1012769302125
115462a35758
1225844b6525
131286659b98
14891c75a8d
154eb081dd5
hex2f91c166d

12769302125 has 8 divisors (see below), whose sum is σ = 15936089208. Its totient is φ = 10215441600.

The previous prime is 12769302109. The next prime is 12769302167. The reversal of 12769302125 is 52120396721.

It can be written as a sum of positive squares in 4 ways, for example, as 90992521 + 12678309604 = 9539^2 + 112598^2 .

It is not a de Polignac number, because 12769302125 - 24 = 12769302109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51077084 + ... + 51077333.

It is an arithmetic number, because the mean of its divisors is an integer number (1992011151).

Almost surely, 212769302125 is an apocalyptic number.

It is an amenable number.

12769302125 is a deficient number, since it is larger than the sum of its proper divisors (3166787083).

12769302125 is an equidigital number, since it uses as much as digits as its factorization.

12769302125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102154432 (or 102154422 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 38.

Adding to 12769302125 its reverse (52120396721), we get a palindrome (64889698846).

The spelling of 12769302125 in words is "twelve billion, seven hundred sixty-nine million, three hundred two thousand, one hundred twenty-five".

Divisors: 1 5 25 125 102154417 510772085 2553860425 12769302125