Base | Representation |
---|---|
bin | 1111101110011… |
… | …00110000011010 |
3 | 100012012202102211 |
4 | 13313030300122 |
5 | 232232120212 |
6 | 21031145334 |
7 | 3161136151 |
oct | 767146032 |
9 | 305182384 |
10 | 131910682 |
11 | 685074a2 |
12 | 3821524a |
13 | 21437377 |
14 | 1373a598 |
15 | b8a99a7 |
hex | 7dccc1a |
131910682 has 4 divisors (see below), whose sum is σ = 197866026. Its totient is φ = 65955340.
The previous prime is 131910679. The next prime is 131910683. The reversal of 131910682 is 286019131.
131910682 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 286019131 = 223 ⋅1282597.
It can be written as a sum of positive squares in only one way, i.e., 110649361 + 21261321 = 10519^2 + 4611^2 .
It is not an unprimeable number, because it can be changed into a prime (131910683) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32977669 + ... + 32977672.
Almost surely, 2131910682 is an apocalyptic number.
131910682 is a deficient number, since it is larger than the sum of its proper divisors (65955344).
131910682 is an equidigital number, since it uses as much as digits as its factorization.
131910682 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 65955343.
The product of its (nonzero) digits is 2592, while the sum is 31.
The square root of 131910682 is about 11485.2375682874. The cubic root of 131910682 is about 509.0494687801.
The spelling of 131910682 in words is "one hundred thirty-one million, nine hundred ten thousand, six hundred eighty-two".
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