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12939460725 = 352473670769
BaseRepresentation
bin11000000110100000…
…01000000001110101
31020101202212201012010
430003100020001311
5203000000220400
65535545314433
7635436413202
oct140320100165
936352781163
1012939460725
11553aa963a4
122611495a19
1312b2996449
148aa6caca9
1550ae94450
hex303408075

12939460725 has 24 divisors (see below), whose sum is σ = 21848423040. Its totient is φ = 6754213120.

The previous prime is 12939460697. The next prime is 12939460739. The reversal of 12939460725 is 52706493921.

It is not a de Polignac number, because 12939460725 - 217 = 12939329653 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1831860 + ... + 1838909.

It is an arithmetic number, because the mean of its divisors is an integer number (910350960).

Almost surely, 212939460725 is an apocalyptic number.

12939460725 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12939460725 is a deficient number, since it is larger than the sum of its proper divisors (8908962315).

12939460725 is a wasteful number, since it uses less digits than its factorization.

12939460725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3670829 (or 3670824 counting only the distinct ones).

The product of its (nonzero) digits is 816480, while the sum is 48.

The spelling of 12939460725 in words is "twelve billion, nine hundred thirty-nine million, four hundred sixty thousand, seven hundred twenty-five".

Divisors: 1 3 5 15 25 47 75 141 235 705 1175 3525 3670769 11012307 18353845 55061535 91769225 172526143 275307675 517578429 862630715 2587892145 4313153575 12939460725