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13158992911 = 94191397069
BaseRepresentation
bin11000100000101011…
…00100110000001111
31020222001222002201211
430100111210300033
5203422200233121
610013430515251
7644043410551
oct142025446017
936861862654
1013158992911
1156429aa159
122672b05b27
1313192cbc4c
148cb9154d1
155203aace1
hex310564c0f

13158992911 has 4 divisors (see below), whose sum is σ = 13160399400. Its totient is φ = 13157586424.

The previous prime is 13158992897. The next prime is 13158992947. The reversal of 13158992911 is 11929985131.

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

It is a cyclic number.

It is not a de Polignac number, because 13158992911 - 219 = 13158468623 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 (13158996911) 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, 689116 + ... + 707953.

It is an arithmetic number, because the mean of its divisors is an integer number (3290099850).

Almost surely, 213158992911 is an apocalyptic number.

13158992911 is a deficient number, since it is larger than the sum of its proper divisors (1406489).

13158992911 is an equidigital number, since it uses as much as digits as its factorization.

13158992911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1406488.

The product of its digits is 174960, while the sum is 49.

The spelling of 13158992911 in words is "thirteen billion, one hundred fifty-eight million, nine hundred ninety-two thousand, nine hundred eleven".

Divisors: 1 9419 1397069 13158992911