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131034529 = 592322123
BaseRepresentation
bin1111100111101…
…10110110100001
3100010120020120201
413303312312201
5232021101104
621000305201
73150526603
oct763666641
9303506521
10131034529
1167a691aa
1237a72201
13211bb632
141358d173
15b7850a4
hex7cf6da1

131034529 has 4 divisors (see below), whose sum is σ = 131062576. Its totient is φ = 131006484.

The previous prime is 131034523. The next prime is 131034569. The reversal of 131034529 is 925430131.

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 131034529 - 217 = 130903457 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131034497 and 131034506.

It is not an unprimeable number, because it can be changed into a prime (131034523) 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 3 ways as a sum of consecutive naturals, for example, 5139 + ... + 16984.

It is an arithmetic number, because the mean of its divisors is an integer number (32765644).

Almost surely, 2131034529 is an apocalyptic number.

It is an amenable number.

131034529 is a deficient number, since it is larger than the sum of its proper divisors (28047).

131034529 is an equidigital number, since it uses as much as digits as its factorization.

131034529 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28046.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 131034529 is about 11447.0314492448. The cubic root of 131034529 is about 507.9199258437.

The spelling of 131034529 in words is "one hundred thirty-one million, thirty-four thousand, five hundred twenty-nine".

Divisors: 1 5923 22123 131034529