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13880268 = 2233128521
BaseRepresentation
bin110100111100…
…101111001100
3222010012011000
4310330233030
512023132033
61213300300
7225660153
oct64745714
928105130
1013880268
1179204a6
124794690
132b4ca9c
141bb459a
151342a13
hexd3cbcc

13880268 has 24 divisors (see below), whose sum is σ = 35986160. Its totient is φ = 4626720.

The previous prime is 13880261. The next prime is 13880327. The reversal of 13880268 is 86208831.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (13880261) 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, 64153 + ... + 64368.

Almost surely, 213880268 is an apocalyptic number.

13880268 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

13880268 is an abundant number, since it is smaller than the sum of its proper divisors (22105892).

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

13880268 is a wasteful number, since it uses less digits than its factorization.

13880268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128534 (or 128526 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

The square root of 13880268 is about 3725.6231693503. The cubic root of 13880268 is about 240.3251841978.

The spelling of 13880268 in words is "thirteen million, eight hundred eighty thousand, two hundred sixty-eight".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 108 128521 257042 385563 514084 771126 1156689 1542252 2313378 3470067 4626756 6940134 13880268