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13808854 = 26904427
BaseRepresentation
bin110100101011…
…010011010110
3221222120012001
4310223103112
512013340404
61211545514
7225242023
oct64532326
927876161
1013808854
117881884
12475b29a
132b26427
141b9654a
15132b7a4
hexd2b4d6

13808854 has 4 divisors (see below), whose sum is σ = 20713284. Its totient is φ = 6904426.

The previous prime is 13808831. The next prime is 13808869. The reversal of 13808854 is 45880831.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3452212 + ... + 3452215.

It is an arithmetic number, because the mean of its divisors is an integer number (5178321).

Almost surely, 213808854 is an apocalyptic number.

13808854 is a deficient number, since it is larger than the sum of its proper divisors (6904430).

13808854 is an equidigital number, since it uses as much as digits as its factorization.

13808854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6904429.

The product of its (nonzero) digits is 30720, while the sum is 37.

The square root of 13808854 is about 3716.0266414546. The cubic root of 13808854 is about 239.9123175067.

The spelling of 13808854 in words is "thirteen million, eight hundred eight thousand, eight hundred fifty-four".

Divisors: 1 2 6904427 13808854