Search a number
-
+
131270523 = 33113710303
BaseRepresentation
bin1111101001100…
…00011101111011
3100011000020022020
413310300131323
5232101124043
621005325523
73152531616
oct764603573
9304006266
10131270523
116810a53a
1237b668a3
1321271b87
141361117d
15b7cee83
hex7d3077b

131270523 has 16 divisors (see below), whose sum is σ = 182009856. Its totient is φ = 84064320.

The previous prime is 131270521. The next prime is 131270527. The reversal of 131270523 is 325072131.

It is not a de Polignac number, because 131270523 - 21 = 131270521 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 131270493 and 131270502.

It is not an unprimeable number, because it can be changed into a prime (131270521) 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 15 ways as a sum of consecutive naturals, for example, 7590 + ... + 17892.

It is an arithmetic number, because the mean of its divisors is an integer number (11375616).

Almost surely, 2131270523 is an apocalyptic number.

131270523 is a deficient number, since it is larger than the sum of its proper divisors (50739333).

131270523 is a wasteful number, since it uses less digits than its factorization.

131270523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10474.

The product of its (nonzero) digits is 1260, while the sum is 24.

The square root of 131270523 is about 11457.3348995305. The cubic root of 131270523 is about 508.2246652840.

The spelling of 131270523 in words is "one hundred thirty-one million, two hundred seventy thousand, five hundred twenty-three".

Divisors: 1 3 31 93 137 411 4247 10303 12741 30909 319393 958179 1411511 4234533 43756841 131270523