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12740154775 = 52509606191
BaseRepresentation
bin10111101110101111…
…10101010110010111
31012212212211220211021
423313113311112113
5202042434423100
65504105422011
7630466346245
oct136727652627
935785756737
1012740154775
115448537937
12257679a907
1312805c302a
1488c049795
154e8725a1a
hex2f75f5597

12740154775 has 6 divisors (see below), whose sum is σ = 15797791952. Its totient is φ = 10192123800.

The previous prime is 12740154751. The next prime is 12740154809. The reversal of 12740154775 is 57745104721.

It is not a de Polignac number, because 12740154775 - 25 = 12740154743 is a prime.

It is a Duffinian number.

It is a congruent number.

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 5 ways as a sum of consecutive naturals, for example, 254803071 + ... + 254803120.

Almost surely, 212740154775 is an apocalyptic number.

12740154775 is a deficient number, since it is larger than the sum of its proper divisors (3057637177).

12740154775 is an equidigital number, since it uses as much as digits as its factorization.

12740154775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 509606201 (or 509606196 counting only the distinct ones).

The product of its (nonzero) digits is 274400, while the sum is 43.

The spelling of 12740154775 in words is "twelve billion, seven hundred forty million, one hundred fifty-four thousand, seven hundred seventy-five".

Divisors: 1 5 25 509606191 2548030955 12740154775