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13255375057 = 14938878349
BaseRepresentation
bin11000101100001010…
…01111100011010001
31021012210022211011221
430112011033203101
5204121334000212
610031152405041
7646323554221
oct142605174321
937183284157
1013255375057
11569234a521
12269b246781
131333276ac2
148da644081
15528a98807
hex31614f8d1

13255375057 has 4 divisors (see below), whose sum is σ = 13264254900. Its totient is φ = 13246495216.

The previous prime is 13255375051. The next prime is 13255375069. The reversal of 13255375057 is 75057355231.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7203935376 + 6051439681 = 84876^2 + 77791^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13255375057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13255375051) 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, 4437682 + ... + 4440667.

It is an arithmetic number, because the mean of its divisors is an integer number (3316063725).

Almost surely, 213255375057 is an apocalyptic number.

It is an amenable number.

13255375057 is a deficient number, since it is larger than the sum of its proper divisors (8879843).

13255375057 is an equidigital number, since it uses as much as digits as its factorization.

13255375057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8879842.

The product of its (nonzero) digits is 551250, while the sum is 43.

The spelling of 13255375057 in words is "thirteen billion, two hundred fifty-five million, three hundred seventy-five thousand, fifty-seven".

Divisors: 1 1493 8878349 13255375057