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13889154 = 232314859
BaseRepresentation
bin110100111110…
…111010000010
3222010122100010
4310332322002
512023423104
61213405350
7226025106
oct64767202
928118303
1013889154
117927144
124799856
132b53b46
141bb7906
151345489
hexd3ee82

13889154 has 8 divisors (see below), whose sum is σ = 27778320. Its totient is φ = 4629716.

The previous prime is 13889143. The next prime is 13889159. The reversal of 13889154 is 45198831.

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

13889154 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (13889159) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 1157424 + ... + 1157435.

It is an arithmetic number, because the mean of its divisors is an integer number (3472290).

Almost surely, 213889154 is an apocalyptic number.

13889154 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

13889154 is a wasteful number, since it uses less digits than its factorization.

13889154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2314864.

The product of its digits is 34560, while the sum is 39.

The square root of 13889154 is about 3726.8155307179. The cubic root of 13889154 is about 240.3764578004.

The spelling of 13889154 in words is "thirteen million, eight hundred eighty-nine thousand, one hundred fifty-four".

Divisors: 1 2 3 6 2314859 4629718 6944577 13889154