Base | Representation |
---|---|
bin | 1111101100111… |
… | …01110101000100 |
3 | 100011211222202210 |
4 | 13312131311010 |
5 | 232204442333 |
6 | 21023103420 |
7 | 3156405600 |
oct | 766356504 |
9 | 304758683 |
10 | 131718468 |
11 | 68396042 |
12 | 38141b70 |
13 | 2139aa2b |
14 | 136ca500 |
15 | b86ca63 |
hex | 7d9dd44 |
131718468 has 36 divisors (see below), whose sum is σ = 357523152. Its totient is φ = 37633680.
The previous prime is 131718467. The next prime is 131718479. The reversal of 131718468 is 864817131.
It is not an unprimeable number, because it can be changed into a prime (131718463) 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, 111418 + ... + 112593.
Almost surely, 2131718468 is an apocalyptic number.
It is an amenable number.
131718468 is an abundant number, since it is smaller than the sum of its proper divisors (225804684).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
131718468 is a wasteful number, since it uses less digits than its factorization.
131718468 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 224032 (or 224023 counting only the distinct ones).
The product of its digits is 32256, while the sum is 39.
The square root of 131718468 is about 11476.8666455614. The cubic root of 131718468 is about 508.8020943261.
The spelling of 131718468 in words is "one hundred thirty-one million, seven hundred eighteen thousand, four hundred sixty-eight".
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