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13187019296 = 251137463123
BaseRepresentation
bin11000100100000000…
…11111001000100000
31021001000200222201002
430102000133020200
5204001334104141
610020311331132
7644533546253
oct142200371040
937030628632
1013187019296
115657801860
122680380aa8
1313220627c9
148d152d09a
15522a94e9b
hex31201f220

13187019296 has 24 divisors (see below), whose sum is σ = 28322121744. Its totient is φ = 5994099520.

The previous prime is 13187019271. The next prime is 13187019319. The reversal of 13187019296 is 69291078131.

It is a self number, because there is not a number n which added to its sum of digits gives 13187019296.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18731210 + ... + 18731913.

It is an arithmetic number, because the mean of its divisors is an integer number (1180088406).

Almost surely, 213187019296 is an apocalyptic number.

13187019296 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

13187019296 is an abundant number, since it is smaller than the sum of its proper divisors (15135102448).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13187019296 is a wasteful number, since it uses less digits than its factorization.

13187019296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37463144 (or 37463136 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 47.

The spelling of 13187019296 in words is "thirteen billion, one hundred eighty-seven million, nineteen thousand, two hundred ninety-six".

Divisors: 1 2 4 8 11 16 22 32 44 88 176 352 37463123 74926246 149852492 299704984 412094353 599409968 824188706 1198819936 1648377412 3296754824 6593509648 13187019296