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13507838117 = 47287400811
BaseRepresentation
bin11001001010010000…
…10100000010100101
31021212101101021101122
430211020110002211
5210131001304432
610112211503325
7655510505144
oct144510240245
937771337348
1013507838117
115801905784
12274b8b7b45
13137366c627
14921da175b
15540d17612
hex3252140a5

13507838117 has 4 divisors (see below), whose sum is σ = 13795238976. Its totient is φ = 13220437260.

The previous prime is 13507838101. The next prime is 13507838119. The reversal of 13507838117 is 71183870531.

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, and also an emirpimes, since its reverse is a distinct semiprime: 71183870531 = 188653377327.

It is a cyclic number.

It is not a de Polignac number, because 13507838117 - 24 = 13507838101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13507838119) 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, 143700359 + ... + 143700452.

It is an arithmetic number, because the mean of its divisors is an integer number (3448809744).

Almost surely, 213507838117 is an apocalyptic number.

It is an amenable number.

13507838117 is a deficient number, since it is larger than the sum of its proper divisors (287400859).

13507838117 is an equidigital number, since it uses as much as digits as its factorization.

13507838117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287400858.

The product of its (nonzero) digits is 141120, while the sum is 44.

The spelling of 13507838117 in words is "thirteen billion, five hundred seven million, eight hundred thirty-eight thousand, one hundred seventeen".

Divisors: 1 47 287400811 13507838117