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12507315707 = 311073799949
BaseRepresentation
bin10111010010111111…
…00111110111111011
31012021122201110200002
423221133213313323
5201103333100312
65425031103215
7621641300165
oct135137476773
935248643602
1012507315707
115339065457
122510811b0b
1312442ab733
14869159935
154d30814c2
hex2e97e7dfb

12507315707 has 16 divisors (see below), whose sum is σ = 13067136000. Its totient is φ = 11957893920.

The previous prime is 12507315697. The next prime is 12507315719. The reversal of 12507315707 is 70751370521.

It is a cyclic number.

It is not a de Polignac number, because 12507315707 - 210 = 12507314683 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12507315607) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1252169 + ... + 1262117.

It is an arithmetic number, because the mean of its divisors is an integer number (816696000).

Almost surely, 212507315707 is an apocalyptic number.

12507315707 is a deficient number, since it is larger than the sum of its proper divisors (559820293).

12507315707 is a wasteful number, since it uses less digits than its factorization.

12507315707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10466.

The product of its (nonzero) digits is 51450, while the sum is 38.

The spelling of 12507315707 in words is "twelve billion, five hundred seven million, three hundred fifteen thousand, seven hundred seven".

Divisors: 1 31 107 379 3317 9949 11749 40553 308419 1064543 1257143 3770671 33000833 116890801 403461797 12507315707