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13838260 = 2254316091
BaseRepresentation
bin110100110010…
…011110110100
3222001001112011
4310302132310
512020311020
61212334004
7225423532
oct64623664
928031464
1013838260
1178a1987
124774304
132b36927
141ba3152
15133535a
hexd327b4

13838260 has 24 divisors (see below), whose sum is σ = 29738016. Its totient is φ = 5406240.

The previous prime is 13838243. The next prime is 13838267. The reversal of 13838260 is 6283831.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13838267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7186 + ... + 8905.

It is an arithmetic number, because the mean of its divisors is an integer number (1239084).

Almost surely, 213838260 is an apocalyptic number.

13838260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13838260 is an abundant number, since it is smaller than the sum of its proper divisors (15899756).

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

13838260 is a wasteful number, since it uses less digits than its factorization.

13838260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16143 (or 16141 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 13838260 is about 3719.9811827481. The cubic root of 13838260 is about 240.0824947891.

The spelling of 13838260 in words is "thirteen million, eight hundred thirty-eight thousand, two hundred sixty".

Divisors: 1 2 4 5 10 20 43 86 172 215 430 860 16091 32182 64364 80455 160910 321820 691913 1383826 2767652 3459565 6919130 13838260