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131713465 = 5132026361
BaseRepresentation
bin1111101100111…
…00100110111001
3100011211201220111
413312130212321
5232204312330
621023024321
73156355162
oct766344671
9304751814
10131713465
1168392304
123813b0a1
1321398680
14136c8769
15b86b32a
hex7d9c9b9

131713465 has 8 divisors (see below), whose sum is σ = 170214408. Its totient is φ = 97265280.

The previous prime is 131713459. The next prime is 131713493. The reversal of 131713465 is 564317131.

It can be written as a sum of positive squares in 4 ways, for example, as 5308416 + 126405049 = 2304^2 + 11243^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 131713465 - 29 = 131712953 is a prime.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1013116 + ... + 1013245.

It is an arithmetic number, because the mean of its divisors is an integer number (21276801).

Almost surely, 2131713465 is an apocalyptic number.

It is an amenable number.

131713465 is a deficient number, since it is larger than the sum of its proper divisors (38500943).

131713465 is a wasteful number, since it uses less digits than its factorization.

131713465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2026379.

The product of its digits is 7560, while the sum is 31.

The square root of 131713465 is about 11476.6486833047. The cubic root of 131713465 is about 508.7956523817.

The spelling of 131713465 in words is "one hundred thirty-one million, seven hundred thirteen thousand, four hundred sixty-five".

Divisors: 1 5 13 65 2026361 10131805 26342693 131713465