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131384617 = 7131443787
BaseRepresentation
bin1111101010011…
…00010100101001
3100011020000210221
413311030110221
5232113301432
621012010041
73153515350
oct765142451
9304200727
10131384617
1168188231
1238000921
13212b1aa0
1413640997
15b803b97
hex7d4c529

131384617 has 8 divisors (see below), whose sum is σ = 161704256. Its totient is φ = 103952592.

The previous prime is 131384611. The next prime is 131384689. The reversal of 131384617 is 716483131.

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

It is a cyclic number.

It is not a de Polignac number, because 131384617 - 23 = 131384609 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131384611) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 721803 + ... + 721984.

It is an arithmetic number, because the mean of its divisors is an integer number (20213032).

Almost surely, 2131384617 is an apocalyptic number.

It is an amenable number.

131384617 is a deficient number, since it is larger than the sum of its proper divisors (30319639).

131384617 is a wasteful number, since it uses less digits than its factorization.

131384617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1443807.

The product of its digits is 12096, while the sum is 34.

The square root of 131384617 is about 11462.3128992363. The cubic root of 131384617 is about 508.3718640924.

The spelling of 131384617 in words is "one hundred thirty-one million, three hundred eighty-four thousand, six hundred seventeen".

Divisors: 1 7 13 91 1443787 10106509 18769231 131384617