Base | Representation |
---|---|
bin | 1111101010101… |
… | …01111110000011 |
3 | 100011022001000102 |
4 | 13311111332003 |
5 | 232121033011 |
6 | 21012513015 |
7 | 3154041506 |
oct | 765257603 |
9 | 304261012 |
10 | 131424131 |
11 | 68204993 |
12 | 3801b76b |
13 | 212c6a77 |
14 | 1365113d |
15 | b81073b |
hex | 7d55f83 |
131424131 has 4 divisors (see below), whose sum is σ = 131452200. Its totient is φ = 131396064.
The previous prime is 131424119. The next prime is 131424169.
131424131 is nontrivially palindromic in base 10.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-131424131 is a prime.
It is a super-2 number, since 2×1314241312 = 34544604418210322, which contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (131424191) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5126 + ... + 17003.
It is an arithmetic number, because the mean of its divisors is an integer number (32863050).
Almost surely, 2131424131 is an apocalyptic number.
131424131 is a deficient number, since it is larger than the sum of its proper divisors (28069).
131424131 is an equidigital number, since it uses as much as digits as its factorization.
131424131 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 28068.
The product of its digits is 288, while the sum is 20.
The square root of 131424131 is about 11464.0364182953. The cubic root of 131424131 is about 508.4228233620.
The spelling of 131424131 in words is "one hundred thirty-one million, four hundred twenty-four thousand, one hundred thirty-one".
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