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131484131 = 139945929
BaseRepresentation
bin1111101011001…
…00100111100011
3100011102002022122
413311210213203
5232124443011
621014054455
73154411442
oct765444743
9304362278
10131484131
1168245a79
123804a42b
132131817c
1413668d59
15b8233db
hex7d649e3

131484131 has 4 divisors (see below), whose sum is σ = 132430200. Its totient is φ = 130538064.

The previous prime is 131484079. The next prime is 131484139.

131484131 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-131484131 is a prime.

It is a super-2 number, since 2×1314841312 = 34576153409650322, 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 131484131.

It is not an unprimeable number, because it can be changed into a prime (131484139) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 472826 + ... + 473103.

It is an arithmetic number, because the mean of its divisors is an integer number (33107550).

Almost surely, 2131484131 is an apocalyptic number.

131484131 is a deficient number, since it is larger than the sum of its proper divisors (946069).

131484131 is an equidigital number, since it uses as much as digits as its factorization.

131484131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 946068.

The product of its digits is 1152, while the sum is 26.

The square root of 131484131 is about 11466.6529990229. The cubic root of 131484131 is about 508.5001828953.

The spelling of 131484131 in words is "one hundred thirty-one million, four hundred eighty-four thousand, one hundred thirty-one".

Divisors: 1 139 945929 131484131