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13906436 = 2213126539
BaseRepresentation
bin110101000011…
…001000000100
3222011112001012
4311003020010
512030001221
61214021352
7226126355
oct65031004
928145035
1013906436
117939125
1247a7858
132b5b97b
141bbdd2c
15134a65b
hexd43204

13906436 has 12 divisors (see below), whose sum is σ = 24522960. Its totient is φ = 6899880.

The previous prime is 13906397. The next prime is 13906439. The reversal of 13906436 is 63460931.

It is a happy number.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (13906439) 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, 12746 + ... + 13793.

It is an arithmetic number, because the mean of its divisors is an integer number (2043580).

Almost surely, 213906436 is an apocalyptic number.

It is an amenable number.

13906436 is a deficient number, since it is larger than the sum of its proper divisors (10616524).

13906436 is a wasteful number, since it uses less digits than its factorization.

13906436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26674 (or 26672 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 32.

The square root of 13906436 is about 3729.1334113973. The cubic root of 13906436 is about 240.4761150376.

The spelling of 13906436 in words is "thirteen million, nine hundred six thousand, four hundred thirty-six".

Divisors: 1 2 4 131 262 524 26539 53078 106156 3476609 6953218 13906436