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131327530 = 2513132753
BaseRepresentation
bin1111101001111…
…10011000101010
3100011010010111121
413310332120222
5232104440110
621010445454
73153160045
oct764763052
9304103447
10131327530
1168149354
1237b9388a
1321291ac9
1413627c5c
15b7e1cda
hex7d3e62a

131327530 has 8 divisors (see below), whose sum is σ = 236389572. Its totient is φ = 52531008.

The previous prime is 131327527. The next prime is 131327531. The reversal of 131327530 is 35723131.

It can be written as a sum of positive squares in 2 ways, for example, as 125865961 + 5461569 = 11219^2 + 2337^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 131327495 and 131327504.

It is not an unprimeable number, because it can be changed into a prime (131327531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6566367 + ... + 6566386.

Almost surely, 2131327530 is an apocalyptic number.

131327530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131327530 is a deficient number, since it is larger than the sum of its proper divisors (105062042).

131327530 is a wasteful number, since it uses less digits than its factorization.

131327530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13132760.

The product of its (nonzero) digits is 1890, while the sum is 25.

The square root of 131327530 is about 11459.8224244532. The cubic root of 131327530 is about 508.2982237389.

The spelling of 131327530 in words is "one hundred thirty-one million, three hundred twenty-seven thousand, five hundred thirty".

Divisors: 1 2 5 10 13132753 26265506 65663765 131327530