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13568757982 = 2131633201689
BaseRepresentation
bin11001010001100001…
…01101000011011110
31022000122000022201221
430220300231003132
5210242100223412
610122225323554
7660150353113
oct145060550336
938018008657
1013568757982
11583323477a
1227681965ba
13138317c1a0
1492a0dc90a
1554634cb07
hex328c2d0de

13568757982 has 16 divisors (see below), whose sum is σ = 22053240720. Its totient is φ = 6224081472.

The previous prime is 13568757967. The next prime is 13568758031. The reversal of 13568757982 is 28975786531.

It is a super-2 number, since 2×135687579822 (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13568757982.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1596607 + ... + 1605082.

It is an arithmetic number, because the mean of its divisors is an integer number (1378327545).

Almost surely, 213568757982 is an apocalyptic number.

13568757982 is a deficient number, since it is larger than the sum of its proper divisors (8484482738).

13568757982 is a wasteful number, since it uses less digits than its factorization.

13568757982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3201867.

The product of its digits is 25401600, while the sum is 61.

The spelling of 13568757982 in words is "thirteen billion, five hundred sixty-eight million, seven hundred fifty-seven thousand, nine hundred eighty-two".

Divisors: 1 2 13 26 163 326 2119 4238 3201689 6403378 41621957 83243914 521875307 1043750614 6784378991 13568757982