Base | Representation |
---|---|
bin | 1111101001100… |
… | …01100010100000 |
3 | 100011000110022210 |
4 | 13310301202200 |
5 | 232101244122 |
6 | 21005402120 |
7 | 3152550456 |
oct | 764614240 |
9 | 304013283 |
10 | 131274912 |
11 | 6811286a |
12 | 37b69340 |
13 | 21273b82 |
14 | 136129d6 |
15 | b7d140c |
hex | 7d318a0 |
131274912 has 24 divisors (see below), whose sum is σ = 344596896. Its totient is φ = 43758272.
The previous prime is 131274893. The next prime is 131274917. The reversal of 131274912 is 219472131.
It is a tau number, because it is divible by the number of its divisors (24).
It is a self number, because there is not a number n which added to its sum of digits gives 131274912.
It is not an unprimeable number, because it can be changed into a prime (131274917) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 683628 + ... + 683819.
It is an arithmetic number, because the mean of its divisors is an integer number (14358204).
Almost surely, 2131274912 is an apocalyptic number.
131274912 is a gapful number since it is divisible by the number (12) formed by its first and last digit.
It is an amenable number.
131274912 is an abundant number, since it is smaller than the sum of its proper divisors (213321984).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
131274912 is a wasteful number, since it uses less digits than its factorization.
131274912 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1367460 (or 1367452 counting only the distinct ones).
The product of its digits is 3024, while the sum is 30.
The square root of 131274912 is about 11457.5264346193. The cubic root of 131274912 is about 508.2303293461.
The spelling of 131274912 in words is "one hundred thirty-one million, two hundred seventy-four thousand, nine hundred twelve".
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