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12907500269 = 59218771191
BaseRepresentation
bin11000000010101100…
…01101001011101101
31020022112201221200112
430001112031023231
5202413310002034
65532444305405
7634600641056
oct140126151355
936275657615
1012907500269
115523a46aa4
122602842265
1312a9186031
148a636b72d
1550827e7ce
hex30158d2ed

12907500269 has 4 divisors (see below), whose sum is σ = 13126271520. Its totient is φ = 12688729020.

The previous prime is 12907500259. The next prime is 12907500317. The reversal of 12907500269 is 96200570921.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12907500269 is a prime.

It is a super-2 number, since 2×129075002692 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12907500259) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 109385537 + ... + 109385654.

It is an arithmetic number, because the mean of its divisors is an integer number (3281567880).

Almost surely, 212907500269 is an apocalyptic number.

It is an amenable number.

12907500269 is a deficient number, since it is larger than the sum of its proper divisors (218771251).

12907500269 is an equidigital number, since it uses as much as digits as its factorization.

12907500269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218771250.

The product of its (nonzero) digits is 68040, while the sum is 41.

The spelling of 12907500269 in words is "twelve billion, nine hundred seven million, five hundred thousand, two hundred sixty-nine".

Divisors: 1 59 218771191 12907500269