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130393506 = 2344349057
BaseRepresentation
bin1111100010110…
…10010110100010
3100002100200021010
413301122112202
5231340043011
620534441350
73142216665
oct761322642
9302320233
10130393506
1167670631
1237803256
1321025929
14134636dc
15b6aa1a6
hex7c5a5a2

130393506 has 16 divisors (see below), whose sum is σ = 261381024. Its totient is φ = 43365504.

The previous prime is 130393477. The next prime is 130393507. The reversal of 130393506 is 605393031.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (130393507) 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, 21871 + ... + 27186.

It is an arithmetic number, because the mean of its divisors is an integer number (16336314).

Almost surely, 2130393506 is an apocalyptic number.

130393506 is an abundant number, since it is smaller than the sum of its proper divisors (130987518).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

130393506 is a wasteful number, since it uses less digits than its factorization.

130393506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49505.

The product of its (nonzero) digits is 7290, while the sum is 30.

The square root of 130393506 is about 11418.9975917328. The cubic root of 130393506 is about 507.0903207705.

The spelling of 130393506 in words is "one hundred thirty million, three hundred ninety-three thousand, five hundred six".

Divisors: 1 2 3 6 443 886 1329 2658 49057 98114 147171 294342 21732251 43464502 65196753 130393506