Base | Representation |
---|---|
bin | 110001110011… |
… | …010100000110 |
3 | 220120021102100 |
4 | 301303110012 |
5 | 11320231423 |
6 | 1143452530 |
7 | 215652630 |
oct | 61632406 |
9 | 26507370 |
10 | 13055238 |
11 | 7407659 |
12 | 4457146 |
13 | 29213c1 |
14 | 1a3ba50 |
15 | 122d343 |
hex | c73506 |
13055238 has 24 divisors (see below), whose sum is σ = 32327568. Its totient is φ = 3730032.
The previous prime is 13055233. The next prime is 13055239. The reversal of 13055238 is 83255031.
13055238 is a `hidden beast` number, since 130 + 5 + 523 + 8 = 666.
It is a Curzon number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13055233) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 51681 + ... + 51932.
It is an arithmetic number, because the mean of its divisors is an integer number (1346982).
Almost surely, 213055238 is an apocalyptic number.
13055238 is a gapful number since it is divisible by the number (18) formed by its first and last digit.
13055238 is an abundant number, since it is smaller than the sum of its proper divisors (19272330).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
13055238 is a wasteful number, since it uses less digits than its factorization.
13055238 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 103628 (or 103625 counting only the distinct ones).
The product of its (nonzero) digits is 3600, while the sum is 27.
The square root of 13055238 is about 3613.2032879427. The cubic root of 13055238 is about 235.4660315862.
The spelling of 13055238 in words is "thirteen million, fifty-five thousand, two hundred thirty-eight".
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