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13904894 = 27395239
BaseRepresentation
bin110101000010…
…101111111110
3222011102221002
4311002233332
512024424034
61214010302
7226122023
oct65025776
928142832
1013904894
117937a53
1247a6992
132b5b063
141bbd54a
151349e7e
hexd42bfe

13904894 has 8 divisors (see below), whose sum is σ = 21143280. Its totient is φ = 6857136.

The previous prime is 13904893. The next prime is 13904909. The reversal of 13904894 is 49840931.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13904893) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47474 + ... + 47765.

It is an arithmetic number, because the mean of its divisors is an integer number (2642910).

Almost surely, 213904894 is an apocalyptic number.

13904894 is a deficient number, since it is larger than the sum of its proper divisors (7238386).

13904894 is an equidigital number, since it uses as much as digits as its factorization.

13904894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95314.

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 13904894 is about 3728.9266552186. The cubic root of 13904894 is about 240.4672263984.

The spelling of 13904894 in words is "thirteen million, nine hundred four thousand, eight hundred ninety-four".

Divisors: 1 2 73 146 95239 190478 6952447 13904894