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13880922 = 2311210317
BaseRepresentation
bin110100111100…
…111001011010
3222010020001020
4310330321122
512023142142
61213303310
7225662106
oct64747132
928106036
1013880922
117920a40
124794b36
132b50183
141bb4906
151342cec
hexd3ce5a

13880922 has 16 divisors (see below), whose sum is σ = 30285792. Its totient is φ = 4206320.

The previous prime is 13880903. The next prime is 13880927. The reversal of 13880922 is 22908831.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (13880927) 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, 105093 + ... + 105224.

It is an arithmetic number, because the mean of its divisors is an integer number (1892862).

Almost surely, 213880922 is an apocalyptic number.

13880922 is an abundant number, since it is smaller than the sum of its proper divisors (16404870).

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

13880922 is a wasteful number, since it uses less digits than its factorization.

13880922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210333.

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 13880922 is about 3725.7109388679. The cubic root of 13880922 is about 240.3289586255.

It can be divided in two parts, 138809 and 22, that added together give a palindrome (138831).

The spelling of 13880922 in words is "thirteen million, eight hundred eighty thousand, nine hundred twenty-two".

Divisors: 1 2 3 6 11 22 33 66 210317 420634 630951 1261902 2313487 4626974 6940461 13880922