Base | Representation |
---|---|
bin | 100100111001111… |
… | …0010100101100011 |
3 | 10012022002211112010 |
4 | 1021303302211203 |
5 | 10014002011230 |
6 | 322513204003 |
7 | 42454326621 |
oct | 11163624543 |
9 | 3168084463 |
10 | 1238313315 |
11 | 585aa5138 |
12 | 2a6860603 |
13 | 16971a395 |
14 | ba664511 |
15 | 73aa79b0 |
hex | 49cf2963 |
1238313315 has 16 divisors (see below), whose sum is σ = 2085580800. Its totient is φ = 625673952.
The previous prime is 1238313313. The next prime is 1238313319. The reversal of 1238313315 is 5133138321.
1238313315 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.
It is not a de Polignac number, because 1238313315 - 21 = 1238313313 is a prime.
It is a super-2 number, since 2×12383133152 = 3066839732212578450, which contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (1238313313) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2172195 + ... + 2172764.
It is an arithmetic number, because the mean of its divisors is an integer number (130348800).
Almost surely, 21238313315 is an apocalyptic number.
1238313315 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
1238313315 is a deficient number, since it is larger than the sum of its proper divisors (847267485).
1238313315 is a wasteful number, since it uses less digits than its factorization.
1238313315 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4344986.
The product of its digits is 6480, while the sum is 30.
The square root of 1238313315 is about 35189.6762559703. The cubic root of 1238313315 is about 1073.8497348455.
The spelling of 1238313315 in words is "one billion, two hundred thirty-eight million, three hundred thirteen thousand, three hundred fifteen".
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