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13768404 = 2231388259
BaseRepresentation
bin110100100001…
…011011010100
3221220111200220
4310201123110
512011042104
61211034340
7225013056
oct64413324
927814626
1013768404
117854451
12473b9b0
132b10bb0
141b858d6
15131e7d9
hexd216d4

13768404 has 24 divisors (see below), whose sum is σ = 34597920. Its totient is φ = 4236384.

The previous prime is 13768387. The next prime is 13768411. The reversal of 13768404 is 40486731.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 43974 + ... + 44285.

It is an arithmetic number, because the mean of its divisors is an integer number (1441580).

Almost surely, 213768404 is an apocalyptic number.

It is an amenable number.

13768404 is an abundant number, since it is smaller than the sum of its proper divisors (20829516).

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

13768404 is a wasteful number, since it uses less digits than its factorization.

13768404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88279 (or 88277 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 13768404 is about 3710.5800085701. The cubic root of 13768404 is about 239.6778316138.

The spelling of 13768404 in words is "thirteen million, seven hundred sixty-eight thousand, four hundred four".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 156 88259 176518 264777 353036 529554 1059108 1147367 2294734 3442101 4589468 6884202 13768404