Base | Representation |
---|---|
bin | 1111101001110… |
… | …10100111110111 |
3 | 100011002100100211 |
4 | 13310322213313 |
5 | 232103441434 |
6 | 21010250251 |
7 | 3153064111 |
oct | 764724767 |
9 | 304070324 |
10 | 131312119 |
11 | 68138814 |
12 | 37b86987 |
13 | 21287aa3 |
14 | 136223b1 |
15 | b7dc464 |
hex | 7d3a9f7 |
131312119 has 4 divisors (see below), whose sum is σ = 131472496. Its totient is φ = 131151744.
The previous prime is 131312047. The next prime is 131312147. The reversal of 131312119 is 911213131.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 131312119 - 211 = 131310071 is a prime.
It is a super-2 number, since 2×1313121192 = 34485745192540322, which contains 22 as substring.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 131312119.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (131310119) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78954 + ... + 80599.
It is an arithmetic number, because the mean of its divisors is an integer number (32868124).
Almost surely, 2131312119 is an apocalyptic number.
131312119 is a deficient number, since it is larger than the sum of its proper divisors (160377).
131312119 is an equidigital number, since it uses as much as digits as its factorization.
131312119 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 160376.
The product of its digits is 162, while the sum is 22.
The square root of 131312119 is about 11459.1500121082. The cubic root of 131312119 is about 508.2783403975.
The spelling of 131312119 in words is "one hundred thirty-one million, three hundred twelve thousand, one hundred nineteen".
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