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13279883328 = 2632431094919
BaseRepresentation
bin11000101111000101…
…01111000001000000
31021021111102222012200
430113202233001000
5204144122231303
610033425553200
7650042101005
oct142742570100
937244388180
1013279883328
1156a5169998
1226a74a5800
13133837823a
148dd9c38ac
1552acda3a3
hex3178af040

13279883328 has 168 divisors, whose sum is σ = 39314932800. Its totient is φ = 4283145216.

The previous prime is 13279883317. The next prime is 13279883333. The reversal of 13279883328 is 82338897231.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2697253 + ... + 2702171.

Almost surely, 213279883328 is an apocalyptic number.

13279883328 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13279883328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19657466400).

13279883328 is an abundant number, since it is smaller than the sum of its proper divisors (26035049472).

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

13279883328 is a wasteful number, since it uses less digits than its factorization.

13279883328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5089 (or 5076 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 54.

The spelling of 13279883328 in words is "thirteen billion, two hundred seventy-nine million, eight hundred eighty-three thousand, three hundred twenty-eight".