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13568248319 = 711709111821
BaseRepresentation
bin11001010001011101…
…10000100111111111
31022000121001102121112
430220232300213333
5210241432421234
610122210352235
7660143131163
oct145056604777
938017042545
1013568248319
115832a1686a
122767b8b67b
131383031202
1492a008ca3
1554629bace
hex328bb09ff

13568248319 has 8 divisors (see below), whose sum is σ = 13767524640. Its totient is φ = 13369199200.

The previous prime is 13568248307. The next prime is 13568248321. The reversal of 13568248319 is 91384286531.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13568248319 - 24 = 13568248303 is a prime.

It is a super-2 number, since 2×135682483192 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13568248399) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65429 + ... + 177249.

It is an arithmetic number, because the mean of its divisors is an integer number (1720940580).

Almost surely, 213568248319 is an apocalyptic number.

13568248319 is a deficient number, since it is larger than the sum of its proper divisors (199276321).

13568248319 is a wasteful number, since it uses less digits than its factorization.

13568248319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113601.

The product of its digits is 1244160, while the sum is 50.

The spelling of 13568248319 in words is "thirteen billion, five hundred sixty-eight million, two hundred forty-eight thousand, three hundred nineteen".

Divisors: 1 71 1709 111821 121339 7939291 191102089 13568248319