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130532393 = 295578081
BaseRepresentation
bin1111100011111…
…00010000101001
3100002121201210002
413301330100221
5231404014033
620541432345
73143335625
oct761742051
9302551702
10130532393
1167755a12
123786b6b5
1321073c04
141349c185
15b6d63e8
hex7c7c429

130532393 has 8 divisors (see below), whose sum is σ = 135292680. Its totient is φ = 125789440.

The previous prime is 130532371. The next prime is 130532399. The reversal of 130532393 is 393235031.

It can be written as a sum of positive squares in 4 ways, for example, as 868624 + 129663769 = 932^2 + 11387^2 .

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 130532393 - 210 = 130531369 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (130532399) 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, 12113 + ... + 20193.

It is an arithmetic number, because the mean of its divisors is an integer number (16911585).

Almost surely, 2130532393 is an apocalyptic number.

It is an amenable number.

130532393 is a deficient number, since it is larger than the sum of its proper divisors (4760287).

130532393 is an equidigital number, since it uses as much as digits as its factorization.

130532393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8667.

The product of its (nonzero) digits is 7290, while the sum is 29.

The square root of 130532393 is about 11425.0773739174. The cubic root of 130532393 is about 507.2702971744.

The spelling of 130532393 in words is "one hundred thirty million, five hundred thirty-two thousand, three hundred ninety-three".

Divisors: 1 29 557 8081 16153 234349 4501117 130532393