Base | Representation |
---|---|
bin | 1111101001111… |
… | …00001000011010 |
3 | 100011002122211200 |
4 | 13310330020122 |
5 | 232104141143 |
6 | 21010335030 |
7 | 3153121116 |
oct | 764741032 |
9 | 304078750 |
10 | 131318298 |
11 | 68142421 |
12 | 37b8a476 |
13 | 2128a847 |
14 | 13624746 |
15 | b7de1d3 |
hex | 7d3c21a |
131318298 has 12 divisors (see below), whose sum is σ = 284523018. Its totient is φ = 43772760.
The previous prime is 131318287. The next prime is 131318347. The reversal of 131318298 is 892813131.
It can be written as a sum of positive squares in only one way, i.e., 104101209 + 27217089 = 10203^2 + 5217^2 .
It is an unprimeable number.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3647713 + ... + 3647748.
Almost surely, 2131318298 is an apocalyptic number.
131318298 is a gapful number since it is divisible by the number (18) formed by its first and last digit.
131318298 is an abundant number, since it is smaller than the sum of its proper divisors (153204720).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
131318298 is a wasteful number, since it uses less digits than its factorization.
131318298 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 7295469 (or 7295466 counting only the distinct ones).
The product of its digits is 10368, while the sum is 36.
The square root of 131318298 is about 11459.4196188114. The cubic root of 131318298 is about 508.2863127579.
The spelling of 131318298 in words is "one hundred thirty-one million, three hundred eighteen thousand, two hundred ninety-eight".
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