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131300531 = 3137114473
BaseRepresentation
bin1111101001101…
…11110010110011
3100011001202110122
413310313302303
5232103104111
621010120455
73153015245
oct764676263
9304052418
10131300531
116813003a
1237b8012b
132128272b
141361c095
15b7d8cdb
hex7d37cb3

131300531 has 8 divisors (see below), whose sum is σ = 139200384. Its totient is φ = 123629760.

The previous prime is 131300473. The next prime is 131300551. The reversal of 131300531 is 135003131.

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 131300531 - 214 = 131284147 is a prime.

It is a super-2 number, since 2×1313005312 = 34479658881763922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131300551) 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, 56090 + ... + 58383.

It is an arithmetic number, because the mean of its divisors is an integer number (17400048).

Almost surely, 2131300531 is an apocalyptic number.

131300531 is a deficient number, since it is larger than the sum of its proper divisors (7899853).

131300531 is a wasteful number, since it uses less digits than its factorization.

131300531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114541.

The product of its (nonzero) digits is 135, while the sum is 17.

The square root of 131300531 is about 11458.6443788085. The cubic root of 131300531 is about 508.2633884831.

Adding to 131300531 its reverse (135003131), we get a palindrome (266303662).

The spelling of 131300531 in words is "one hundred thirty-one million, three hundred thousand, five hundred thirty-one".

Divisors: 1 31 37 1147 114473 3548663 4235501 131300531