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13292371187 = 47927750253
BaseRepresentation
bin11000110000100100…
…10111110011110011
31021022100221102022222
430120102113303303
5204210321334222
610034553351255
7650253201524
oct143022276363
937270842288
1013292371187
115701219237
1226ab70852b
13133ab2b2c4
1490151484b
1552be55542
hex318497cf3

13292371187 has 4 divisors (see below), whose sum is σ = 13320121920. Its totient is φ = 13264620456.

The previous prime is 13292371109. The next prime is 13292371189. The reversal of 13292371187 is 78117329231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78117329231 = 773101057347.

It is a cyclic number.

It is not a de Polignac number, because 13292371187 - 210 = 13292370163 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13292371189) 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, 13874648 + ... + 13875605.

It is an arithmetic number, because the mean of its divisors is an integer number (3330030480).

Almost surely, 213292371187 is an apocalyptic number.

13292371187 is a deficient number, since it is larger than the sum of its proper divisors (27750733).

13292371187 is an equidigital number, since it uses as much as digits as its factorization.

13292371187 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27750732.

The product of its digits is 127008, while the sum is 44.

The spelling of 13292371187 in words is "thirteen billion, two hundred ninety-two million, three hundred seventy-one thousand, one hundred eighty-seven".

Divisors: 1 479 27750253 13292371187