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131312414 = 265656207
BaseRepresentation
bin1111101001110…
…10101100011110
3100011002100202202
413310322230132
5232103444124
621010251502
73153065012
oct764725436
9304070682
10131312414
1168138a62
1237b86b92
1321287c6c
1413622542
15b7dc5ae
hex7d3ab1e

131312414 has 4 divisors (see below), whose sum is σ = 196968624. Its totient is φ = 65656206.

The previous prime is 131312413. The next prime is 131312417. The reversal of 131312414 is 414213131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 414213131 = 1831122621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131312413) 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 as a sum of consecutive naturals, namely, 32828102 + ... + 32828105.

It is an arithmetic number, because the mean of its divisors is an integer number (49242156).

Almost surely, 2131312414 is an apocalyptic number.

131312414 is a deficient number, since it is larger than the sum of its proper divisors (65656210).

131312414 is an equidigital number, since it uses as much as digits as its factorization.

131312414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65656209.

The product of its digits is 288, while the sum is 20.

The square root of 131312414 is about 11459.1628839108. The cubic root of 131312414 is about 508.2787210224.

Adding to 131312414 its reverse (414213131), we get a palindrome (545525545).

The spelling of 131312414 in words is "one hundred thirty-one million, three hundred twelve thousand, four hundred fourteen".

Divisors: 1 2 65656207 131312414