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13883868 = 2232385663
BaseRepresentation
bin110100111101…
…100111011100
3222010101002100
4310331213130
512023240433
61213325100
7226003515
oct64754734
928111070
1013883868
117923179
124796790
132b5160b
141bb5a0c
151343b13
hexd3d9dc

13883868 has 18 divisors (see below), whose sum is σ = 35095424. Its totient is φ = 4627944.

The previous prime is 13883867. The next prime is 13883869. The reversal of 13883868 is 86838831.

It is an interprime number because it is at equal distance from previous prime (13883867) and next prime (13883869).

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13883861) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 192796 + ... + 192867.

Almost surely, 213883868 is an apocalyptic number.

13883868 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

13883868 is an abundant number, since it is smaller than the sum of its proper divisors (21211556).

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

13883868 is a wasteful number, since it uses less digits than its factorization.

13883868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385673 (or 385668 counting only the distinct ones).

The product of its digits is 221184, while the sum is 45.

The square root of 13883868 is about 3726.1062786775. The cubic root of 13883868 is about 240.3459593941.

The spelling of 13883868 in words is "thirteen million, eight hundred eighty-three thousand, eight hundred sixty-eight".

Divisors: 1 2 3 4 6 9 12 18 36 385663 771326 1156989 1542652 2313978 3470967 4627956 6941934 13883868