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130552531 = 2343313109
BaseRepresentation
bin1111100100000…
…01001011010011
3100002122202101221
413302001023103
5231410140111
620542105511
73143451424
oct762011323
9302582357
10130552531
116776a05a
123787b297
1321080125
14134a564b
15b6dc371
hex7c812d3

130552531 has 8 divisors (see below), whose sum is σ = 136553760. Its totient is φ = 124578432.

The previous prime is 130552523. The next prime is 130552549. The reversal of 130552531 is 135255031.

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 130552531 - 23 = 130552523 is a prime.

It is a super-2 number, since 2×1305525312 = 34087926701011922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 130552496 and 130552505.

It is not an unprimeable number, because it can be changed into a prime (130552931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3405 + ... + 16513.

It is an arithmetic number, because the mean of its divisors is an integer number (17069220).

Almost surely, 2130552531 is an apocalyptic number.

130552531 is a deficient number, since it is larger than the sum of its proper divisors (6001229).

130552531 is a wasteful number, since it uses less digits than its factorization.

130552531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13565.

The product of its (nonzero) digits is 2250, while the sum is 25.

The square root of 130552531 is about 11425.9586468707. The cubic root of 130552531 is about 507.2963823571.

The spelling of 130552531 in words is "one hundred thirty million, five hundred fifty-two thousand, five hundred thirty-one".

Divisors: 1 23 433 9959 13109 301507 5676197 130552531