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131411541 = 343803847
BaseRepresentation
bin1111101010100…
…10111001010101
3100011021101202010
413311102321111
5232120132131
621012334433
73153660012
oct765227125
9304241663
10131411541
11681a6488
1238014419
13212c1111
141364a709
15b80bb46
hex7d52e55

131411541 has 4 divisors (see below), whose sum is σ = 175215392. Its totient is φ = 87607692.

The previous prime is 131411509. The next prime is 131411549. The reversal of 131411541 is 145114131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 131411541 - 25 = 131411509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131411549) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21901921 + ... + 21901926.

It is an arithmetic number, because the mean of its divisors is an integer number (43803848).

Almost surely, 2131411541 is an apocalyptic number.

It is an amenable number.

131411541 is a deficient number, since it is larger than the sum of its proper divisors (43803851).

131411541 is an equidigital number, since it uses as much as digits as its factorization.

131411541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43803850.

The product of its digits is 240, while the sum is 21.

The square root of 131411541 is about 11463.4872966301. The cubic root of 131411541 is about 508.4065877648.

Adding to 131411541 its reverse (145114131), we get a palindrome (276525672).

The spelling of 131411541 in words is "one hundred thirty-one million, four hundred eleven thousand, five hundred forty-one".

Divisors: 1 3 43803847 131411541