Base | Representation |
---|---|
bin | 110010100000… |
… | …000101111111 |
3 | 220220121000120 |
4 | 302200011333 |
5 | 11342114110 |
6 | 1151430023 |
7 | 220345443 |
oct | 62400577 |
9 | 26817016 |
10 | 13238655 |
11 | 7522441 |
12 | 4525313 |
13 | 2986a31 |
14 | 1a88823 |
15 | 1267870 |
hex | ca017f |
13238655 has 8 divisors (see below), whose sum is σ = 21181872. Its totient is φ = 7060608.
The previous prime is 13238653. The next prime is 13238663. The reversal of 13238655 is 55683231.
13238655 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 13238655 - 21 = 13238653 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13238653) 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, 441274 + ... + 441303.
It is an arithmetic number, because the mean of its divisors is an integer number (2647734).
Almost surely, 213238655 is an apocalyptic number.
13238655 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
13238655 is a deficient number, since it is larger than the sum of its proper divisors (7943217).
13238655 is an equidigital number, since it uses as much as digits as its factorization.
13238655 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 882585.
The product of its digits is 21600, while the sum is 33.
The square root of 13238655 is about 3638.4962553231. The cubic root of 13238655 is about 236.5636186527.
The spelling of 13238655 in words is "thirteen million, two hundred thirty-eight thousand, six hundred fifty-five".
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