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13890201 = 3133111489
BaseRepresentation
bin110100111111…
…001010011001
3222010200202220
4310333022121
512023441301
61213414253
7226031133
oct64771231
928120686
1013890201
117927a06
12479a389
132b54470
141bb8053
151345936
hexd3f299

13890201 has 16 divisors (see below), whose sum is σ = 20590080. Its totient is φ = 8271360.

The previous prime is 13890169. The next prime is 13890209. The reversal of 13890201 is 10209831.

It is not a de Polignac number, because 13890201 - 25 = 13890169 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13890209) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4536 + ... + 6953.

It is an arithmetic number, because the mean of its divisors is an integer number (1286880).

Almost surely, 213890201 is an apocalyptic number.

It is an amenable number.

13890201 is a deficient number, since it is larger than the sum of its proper divisors (6699879).

13890201 is a wasteful number, since it uses less digits than its factorization.

13890201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11536.

The product of its (nonzero) digits is 432, while the sum is 24.

The square root of 13890201 is about 3726.9559965205. The cubic root of 13890201 is about 240.3824977130.

The spelling of 13890201 in words is "thirteen million, eight hundred ninety thousand, two hundred one".

Divisors: 1 3 13 31 39 93 403 1209 11489 34467 149357 356159 448071 1068477 4630067 13890201