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131529341 = 235718667
BaseRepresentation
bin1111101011011…
…11101001111101
3100011111101100002
413311233221331
5232132414331
621015044045
73154660316
oct765575175
9304441302
10131529341
1168276a39
1238070625
1321332918
141367b60d
15b8319cb
hex7d6fa7d

131529341 has 4 divisors (see below), whose sum is σ = 137248032. Its totient is φ = 125810652.

The previous prime is 131529337. The next prime is 131529347. The reversal of 131529341 is 143925131.

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 a cyclic number.

It is not a de Polignac number, because 131529341 - 22 = 131529337 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 (131529347) 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, 2859311 + ... + 2859356.

It is an arithmetic number, because the mean of its divisors is an integer number (34312008).

Almost surely, 2131529341 is an apocalyptic number.

It is an amenable number.

131529341 is a deficient number, since it is larger than the sum of its proper divisors (5718691).

131529341 is an equidigital number, since it uses as much as digits as its factorization.

131529341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5718690.

The product of its digits is 3240, while the sum is 29.

The square root of 131529341 is about 11468.6241982201. The cubic root of 131529341 is about 508.5584577575.

The spelling of 131529341 in words is "one hundred thirty-one million, five hundred twenty-nine thousand, three hundred forty-one".

Divisors: 1 23 5718667 131529341