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131331141 = 3246731247
BaseRepresentation
bin1111101001111…
…11010001000101
3100011010022110100
413310333101011
5232110044031
621010514313
73153203424
oct764772105
9304108410
10131331141
1168151037
1237b95999
1321293646
14136292bb
15b7e2de6
hex7d3f445

131331141 has 12 divisors (see below), whose sum is σ = 190112832. Its totient is φ = 87363816.

The previous prime is 131331139. The next prime is 131331181. The reversal of 131331141 is 141133131.

131331141 is a `hidden beast` number, since 1 + 313 + 311 + 41 = 666.

It is not a de Polignac number, because 131331141 - 21 = 131331139 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131331181) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11421 + ... + 19826.

It is an arithmetic number, because the mean of its divisors is an integer number (15842736).

Almost surely, 2131331141 is an apocalyptic number.

It is an amenable number.

131331141 is a deficient number, since it is larger than the sum of its proper divisors (58781691).

131331141 is a wasteful number, since it uses less digits than its factorization.

131331141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31720 (or 31717 counting only the distinct ones).

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

The square root of 131331141 is about 11459.9799738045. The cubic root of 131331141 is about 508.3028824424.

Adding to 131331141 its reverse (141133131), we get a palindrome (272464272).

The spelling of 131331141 in words is "one hundred thirty-one million, three hundred thirty-one thousand, one hundred forty-one".

Divisors: 1 3 9 467 1401 4203 31247 93741 281223 14592349 43777047 131331141