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131464223 = 111792373
BaseRepresentation
bin1111101010111…
…11110000011111
3100011101002000022
413311133300133
5232123323343
621013422355
73154266422
oct765376037
9304332008
10131464223
1168232020
123803a9bb
132130c0a7
14136619b9
15b81c568
hex7d5fc1f

131464223 has 12 divisors (see below), whose sum is σ = 144607848. Its totient is φ = 118526640.

The previous prime is 131464169. The next prime is 131464231. The reversal of 131464223 is 322464131.

It is not a de Polignac number, because 131464223 - 218 = 131202079 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 131464192 and 131464201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131464243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 352265 + ... + 352637.

It is an arithmetic number, because the mean of its divisors is an integer number (12050654).

Almost surely, 2131464223 is an apocalyptic number.

131464223 is a deficient number, since it is larger than the sum of its proper divisors (13143625).

131464223 is an equidigital number, since it uses as much as digits as its factorization.

131464223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 742 (or 563 counting only the distinct ones).

The product of its digits is 3456, while the sum is 26.

The square root of 131464223 is about 11465.7848837312. The cubic root of 131464223 is about 508.4745176115.

The spelling of 131464223 in words is "one hundred thirty-one million, four hundred sixty-four thousand, two hundred twenty-three".

Divisors: 1 11 179 373 1969 4103 32041 66767 352451 734437 11951293 131464223