Base | Representation |
---|---|
bin | 110010011111… |
… | …111100010111 |
3 | 220220120011202 |
4 | 302133330113 |
5 | 11342104124 |
6 | 1151423115 |
7 | 220343603 |
oct | 62377427 |
9 | 26816152 |
10 | 13238039 |
11 | 7521a31 |
12 | 4524a9b |
13 | 2986679 |
14 | 1a88503 |
15 | 12675ae |
hex | c9ff17 |
13238039 has 8 divisors (see below), whose sum is σ = 13749792. Its totient is φ = 12735360.
The previous prime is 13238011. The next prime is 13238047. The reversal of 13238039 is 93083231.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 13238039 - 212 = 13233943 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13238009) 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, 782 + ... + 5204.
It is an arithmetic number, because the mean of its divisors is an integer number (1718724).
Almost surely, 213238039 is an apocalyptic number.
13238039 is a deficient number, since it is larger than the sum of its proper divisors (511753).
13238039 is an equidigital number, since it uses as much as digits as its factorization.
13238039 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4537.
The product of its (nonzero) digits is 3888, while the sum is 29.
The square root of 13238039 is about 3638.4116039833. The cubic root of 13238039 is about 236.5599494620.
The spelling of 13238039 in words is "thirteen million, two hundred thirty-eight thousand, thirty-nine".
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