Base | Representation |
---|---|
bin | 1111100111110… |
… | …01001100100011 |
3 | 100010120201202100 |
4 | 13303321030203 |
5 | 232021403011 |
6 | 21000421443 |
7 | 3150566601 |
oct | 763711443 |
9 | 303521670 |
10 | 131044131 |
11 | 67a75439 |
12 | 37a77883 |
13 | 211c2b0a |
14 | 13592871 |
15 | b787d56 |
hex | 7cf9323 |
131044131 has 12 divisors (see below), whose sum is σ = 193313952. Its totient is φ = 85503696.
The previous prime is 131044129. The next prime is 131044153. The reversal of 131044131 is 131440131.
It is not a de Polignac number, because 131044131 - 21 = 131044129 is a prime.
It is a super-2 number, since 2×1310441312 = 34345128539090322, which contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (131044031) 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, 154476 + ... + 155321.
It is an arithmetic number, because the mean of its divisors is an integer number (16109496).
Almost surely, 2131044131 is an apocalyptic number.
131044131 is a deficient number, since it is larger than the sum of its proper divisors (62269821).
131044131 is a wasteful number, since it uses less digits than its factorization.
131044131 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 309850 (or 309847 counting only the distinct ones).
The product of its (nonzero) digits is 144, while the sum is 18.
The square root of 131044131 is about 11447.4508516088. The cubic root of 131044131 is about 507.9323320597.
Adding to 131044131 its reverse (131440131), we get a palindrome (262484262).
The spelling of 131044131 in words is "one hundred thirty-one million, forty-four thousand, one hundred thirty-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.068 sec. • engine limits •