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12847103425 = 521339529549
BaseRepresentation
bin10111111011011111…
…10011110111000001
31020011100002110210101
423331233303313001
5202302324302200
65522450002401
7633235402012
oct137557636701
936140073711
1012847103425
1154a2944a52
1225a6576401
1312997ca560
1489c329009
15502cee26a
hex2fdbf3dc1

12847103425 has 12 divisors (see below), whose sum is σ = 17155824700. Its totient is φ = 9487091520.

The previous prime is 12847103413. The next prime is 12847103519. The reversal of 12847103425 is 52430174821.

It can be written as a sum of positive squares in 6 ways, for example, as 3299468481 + 9547634944 = 57441^2 + 97712^2 .

It is not a de Polignac number, because 12847103425 - 215 = 12847070657 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19764450 + ... + 19765099.

Almost surely, 212847103425 is an apocalyptic number.

It is an amenable number.

12847103425 is a deficient number, since it is larger than the sum of its proper divisors (4308721275).

12847103425 is a wasteful number, since it uses less digits than its factorization.

12847103425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39529572 (or 39529567 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 37.

The spelling of 12847103425 in words is "twelve billion, eight hundred forty-seven million, one hundred three thousand, four hundred twenty-five".

Divisors: 1 5 13 25 65 325 39529549 197647745 513884137 988238725 2569420685 12847103425