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13904382 = 23103149151
BaseRepresentation
bin110101000010…
…100111111110
3222011102020010
4311002213332
512024420012
61214004050
7226120362
oct65024776
928142203
1013904382
117937628
1247a6626
132b5aa5b
141bbd2a2
151349c3c
hexd429fe

13904382 has 32 divisors (see below), whose sum is σ = 28454400. Its totient is φ = 4528800.

The previous prime is 13904377. The next prime is 13904393. The reversal of 13904382 is 28340931.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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, 92007 + ... + 92157.

It is an arithmetic number, because the mean of its divisors is an integer number (889200).

Almost surely, 213904382 is an apocalyptic number.

13904382 is an abundant number, since it is smaller than the sum of its proper divisors (14550018).

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

13904382 is a wasteful number, since it uses less digits than its factorization.

13904382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 13904382 is about 3728.8580021234. The cubic root of 13904382 is about 240.4642749020.

The spelling of 13904382 in words is "thirteen million, nine hundred four thousand, three hundred eighty-two".

Divisors: 1 2 3 6 103 149 151 206 298 302 309 447 453 618 894 906 15347 15553 22499 30694 31106 44998 46041 46659 67497 92082 93318 134994 2317397 4634794 6952191 13904382