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13680798 = 2319412927
BaseRepresentation
bin110100001100…
…000010011110
3221202001112020
4310030002132
512000241143
61205121010
7224166465
oct64140236
927661466
1013680798
1177a464a
1246b9166
132ab0061
141b619dc
151303883
hexd0c09e

13680798 has 32 divisors (see below), whose sum is σ = 29514240. Its totient is φ = 4213440.

The previous prime is 13680773. The next prime is 13680809. The reversal of 13680798 is 89708631.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3211 + ... + 6137.

It is an arithmetic number, because the mean of its divisors is an integer number (922320).

Almost surely, 213680798 is an apocalyptic number.

13680798 is an abundant number, since it is smaller than the sum of its proper divisors (15833442).

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

13680798 is a wasteful number, since it uses less digits than its factorization.

13680798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2992.

The product of its (nonzero) digits is 72576, while the sum is 42.

The square root of 13680798 is about 3698.7562774533. The cubic root of 13680798 is about 239.1684066020.

The spelling of 13680798 in words is "thirteen million, six hundred eighty thousand, seven hundred ninety-eight".

Divisors: 1 2 3 6 19 38 41 57 82 114 123 246 779 1558 2337 2927 4674 5854 8781 17562 55613 111226 120007 166839 240014 333678 360021 720042 2280133 4560266 6840399 13680798