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13890184 = 2371122549
BaseRepresentation
bin110100111111…
…001010001000
3222010200202021
4310333022020
512023441214
61213414224
7226031110
oct64771210
928120667
1013890184
1179279a0
12479a374
132b54459
141bb8040
151345924
hexd3f288

13890184 has 32 divisors (see below), whose sum is σ = 32472000. Its totient is φ = 5411520.

The previous prime is 13890169. The next prime is 13890209. The reversal of 13890184 is 48109831.

It is a happy number.

13890184 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10659 + ... + 11890.

It is an arithmetic number, because the mean of its divisors is an integer number (1014750).

Almost surely, 213890184 is an apocalyptic number.

13890184 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

13890184 is an abundant number, since it is smaller than the sum of its proper divisors (18581816).

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

13890184 is a wasteful number, since it uses less digits than its factorization.

13890184 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22573 (or 22569 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 34.

The square root of 13890184 is about 3726.9537158382. The cubic root of 13890184 is about 240.3823996461.

The spelling of 13890184 in words is "thirteen million, eight hundred ninety thousand, one hundred eighty-four".

Divisors: 1 2 4 7 8 11 14 22 28 44 56 77 88 154 308 616 22549 45098 90196 157843 180392 248039 315686 496078 631372 992156 1262744 1736273 1984312 3472546 6945092 13890184