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12731373507 = 315727030517
BaseRepresentation
bin10111101101101100…
…10101011111000011
31012212021022210012010
423312312111133003
5202033212423012
65503153304003
7630331614006
oct136666253703
935767283163
1012731373507
11544358a396
122573865003
13127b83a108
1488ac0153d
154e7a8dc3c
hex2f6d957c3

12731373507 has 8 divisors (see below), whose sum is σ = 17083287376. Its totient is φ = 8433520992.

The previous prime is 12731373463. The next prime is 12731373527. The reversal of 12731373507 is 70537313721.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12731373507 - 26 = 12731373443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12731373527) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13514788 + ... + 13515729.

It is an arithmetic number, because the mean of its divisors is an integer number (2135410922).

Almost surely, 212731373507 is an apocalyptic number.

12731373507 is a deficient number, since it is larger than the sum of its proper divisors (4351913869).

12731373507 is a wasteful number, since it uses less digits than its factorization.

12731373507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27030677.

The product of its (nonzero) digits is 92610, while the sum is 39.

The spelling of 12731373507 in words is "twelve billion, seven hundred thirty-one million, three hundred seventy-three thousand, five hundred seven".

Divisors: 1 3 157 471 27030517 81091551 4243791169 12731373507