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13938304 = 27108893
BaseRepresentation
bin110101001010…
…111010000000
3222020010202111
4311022322000
512032011204
61214425104
7226321312
oct65127200
928203674
1013938304
117960066
124802194
132b70323
141bcb7b2
151354d04
hexd4ae80

13938304 has 16 divisors (see below), whose sum is σ = 27767970. Its totient is φ = 6969088.

The previous prime is 13938289. The next prime is 13938329. The reversal of 13938304 is 40383931.

It can be written as a sum of positive squares in only one way, i.e., 12110400 + 1827904 = 3480^2 + 1352^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54319 + ... + 54574.

Almost surely, 213938304 is an apocalyptic number.

It is an amenable number.

13938304 is a deficient number, since it is larger than the sum of its proper divisors (13829666).

13938304 is an equidigital number, since it uses as much as digits as its factorization.

13938304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108907 (or 108895 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 13938304 is about 3733.4038088586. The cubic root of 13938304 is about 240.6596666532.

The spelling of 13938304 in words is "thirteen million, nine hundred thirty-eight thousand, three hundred four".

Divisors: 1 2 4 8 16 32 64 128 108893 217786 435572 871144 1742288 3484576 6969152 13938304