Base | Representation |
---|---|
bin | 1111101001101… |
… | …11010101111010 |
3 | 100011001122221011 |
4 | 13310313111322 |
5 | 232103024212 |
6 | 21010104134 |
7 | 3153006664 |
oct | 764672572 |
9 | 304048834 |
10 | 131298682 |
11 | 68129709 |
12 | 37b7b04a |
13 | 21281938 |
14 | 1361b534 |
15 | b7d84a7 |
hex | 7d3757a |
131298682 has 4 divisors (see below), whose sum is σ = 196948026. Its totient is φ = 65649340.
The previous prime is 131298647. The next prime is 131298707. The reversal of 131298682 is 286892131.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 286892131 = 199 ⋅1441669.
It can be written as a sum of positive squares in only one way, i.e., 125686521 + 5612161 = 11211^2 + 2369^2 .
It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.
It is an unprimeable number.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32824669 + ... + 32824672.
Almost surely, 2131298682 is an apocalyptic number.
131298682 is a deficient number, since it is larger than the sum of its proper divisors (65649344).
131298682 is an equidigital number, since it uses as much as digits as its factorization.
131298682 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 65649343.
The product of its digits is 41472, while the sum is 40.
The square root of 131298682 is about 11458.5636970783. The cubic root of 131298682 is about 508.2610026501.
The spelling of 131298682 in words is "one hundred thirty-one million, two hundred ninety-eight thousand, six hundred eighty-two".
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