Base | Representation |
---|---|
bin | 1111101001100… |
… | …00001011011010 |
3 | 100011000011200100 |
4 | 13310300023122 |
5 | 232101104323 |
6 | 21005320230 |
7 | 3152525304 |
oct | 764601332 |
9 | 304004610 |
10 | 131269338 |
11 | 68109662 |
12 | 37b66076 |
13 | 21271485 |
14 | 13610974 |
15 | b7ce943 |
hex | 7d302da |
131269338 has 24 divisors (see below), whose sum is σ = 284731200. Its totient is φ = 43708104.
The previous prime is 131269337. The next prime is 131269351. The reversal of 131269338 is 833962131.
131269338 is a `hidden beast` number, since 1 + 312 + 6 + 9 + 338 = 666.
It is not an unprimeable number, because it can be changed into a prime (131269337) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15193 + ... + 22211.
It is an arithmetic number, because the mean of its divisors is an integer number (11863800).
Almost surely, 2131269338 is an apocalyptic number.
131269338 is a gapful number since it is divisible by the number (18) formed by its first and last digit.
131269338 is an abundant number, since it is smaller than the sum of its proper divisors (153461862).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
131269338 is a wasteful number, since it uses less digits than its factorization.
131269338 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 8066 (or 8063 counting only the distinct ones).
The product of its digits is 23328, while the sum is 36.
The square root of 131269338 is about 11457.2831858168. The cubic root of 131269338 is about 508.2231360043.
The spelling of 131269338 in words is "one hundred thirty-one million, two hundred sixty-nine thousand, three hundred thirty-eight".
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