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13868942 = 2109113563
BaseRepresentation
bin110100111001…
…111110001110
3222002121121112
4310321332032
512022301232
61213132022
7225612143
oct64717616
928077545
1013868942
117912a3a
12478a012
132b47899
141bb03ca
15133e4b2
hexd39f8e

13868942 has 16 divisors (see below), whose sum is σ = 21217680. Its totient is φ = 6797952.

The previous prime is 13868941. The next prime is 13868951. The reversal of 13868942 is 24986831.

It is a self number, because there is not a number n which added to its sum of digits gives 13868942.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13868941) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24353 + ... + 24915.

It is an arithmetic number, because the mean of its divisors is an integer number (1326105).

Almost surely, 213868942 is an apocalyptic number.

13868942 is a deficient number, since it is larger than the sum of its proper divisors (7348738).

13868942 is a wasteful number, since it uses less digits than its factorization.

13868942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 787.

The product of its digits is 82944, while the sum is 41.

The square root of 13868942 is about 3724.1028449816. The cubic root of 13868942 is about 240.2597996842.

The spelling of 13868942 in words is "thirteen million, eight hundred sixty-eight thousand, nine hundred forty-two".

Divisors: 1 2 109 113 218 226 563 1126 12317 24634 61367 63619 122734 127238 6934471 13868942