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131832530 = 2513183253
BaseRepresentation
bin1111101101110…
…01101011010010
3100012001210020022
413312321223102
5232222120110
621025343442
73160362254
oct766715322
9305053208
10131832530
1168463805
1238197b82
132140a91b
1413719cd4
15b891755
hex7db9ad2

131832530 has 8 divisors (see below), whose sum is σ = 237298572. Its totient is φ = 52733008.

The previous prime is 131832523. The next prime is 131832551. The reversal of 131832530 is 35238131.

It can be written as a sum of positive squares in 2 ways, for example, as 126855169 + 4977361 = 11263^2 + 2231^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 131832530.

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 3 ways as a sum of consecutive naturals, for example, 6591617 + ... + 6591636.

Almost surely, 2131832530 is an apocalyptic number.

131832530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131832530 is a deficient number, since it is larger than the sum of its proper divisors (105466042).

131832530 is a wasteful number, since it uses less digits than its factorization.

131832530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13183260.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 131832530 is about 11481.8347836920. The cubic root of 131832530 is about 508.9489181834.

The spelling of 131832530 in words is "one hundred thirty-one million, eight hundred thirty-two thousand, five hundred thirty".

Divisors: 1 2 5 10 13183253 26366506 65916265 131832530