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131660341 = 715693259
BaseRepresentation
bin1111101100011…
…11101000110101
3100011202001000221
413312033220311
5232201112331
621021534341
73156044251
oct766175065
9304661027
10131660341
11683563aa
12381143b1
132137a437
14136b3261
15b85a711
hex7d8fa35

131660341 has 8 divisors (see below), whose sum is σ = 133790400. Its totient is φ = 129538080.

The previous prime is 131660339. The next prime is 131660351. The reversal of 131660341 is 143066131.

It is a happy number.

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

It is not a de Polignac number, because 131660341 - 21 = 131660339 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 (131660351) 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 7 ways as a sum of consecutive naturals, for example, 38770 + ... + 42028.

It is an arithmetic number, because the mean of its divisors is an integer number (16723800).

Almost surely, 2131660341 is an apocalyptic number.

It is an amenable number.

131660341 is a deficient number, since it is larger than the sum of its proper divisors (2130059).

131660341 is an equidigital number, since it uses as much as digits as its factorization.

131660341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3899.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 131660341 is about 11474.3340111747. The cubic root of 131660341 is about 508.7272389892.

The spelling of 131660341 in words is "one hundred thirty-one million, six hundred sixty thousand, three hundred forty-one".

Divisors: 1 71 569 3259 40399 231389 1854371 131660341