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131413131 = 3317592767
BaseRepresentation
bin1111101010100…
…11010010001011
3100011021110221000
413311103102023
5232120210011
621012350043
73153664443
oct765232213
9304243830
10131413131
11681a76a3
1238015323
13212c1a65
141364b123
15b80c356
hex7d5348b

131413131 has 16 divisors (see below), whose sum is σ = 194867200. Its totient is φ = 87527304.

The previous prime is 131413127. The next prime is 131413141. The reversal of 131413131 is 131314131.

It is not a de Polignac number, because 131413131 - 22 = 131413127 is a prime.

It is a super-2 number, since 2×1314131312 = 34538821998446322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131413141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46110 + ... + 48876.

It is an arithmetic number, because the mean of its divisors is an integer number (12179200).

Almost surely, 2131413131 is an apocalyptic number.

131413131 is a deficient number, since it is larger than the sum of its proper divisors (63454069).

131413131 is a wasteful number, since it uses less digits than its factorization.

131413131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4535 (or 4529 counting only the distinct ones).

The product of its digits is 108, while the sum is 18.

The square root of 131413131 is about 11463.5566470446. The cubic root of 131413131 is about 508.4086382271.

Adding to 131413131 its reverse (131314131), we get a palindrome (262727262).

The spelling of 131413131 in words is "one hundred thirty-one million, four hundred thirteen thousand, one hundred thirty-one".

Divisors: 1 3 9 27 1759 2767 5277 8301 15831 24903 47493 74709 4867153 14601459 43804377 131413131