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130732180 = 2256536609
BaseRepresentation
bin1111100101011…
…01000010010100
3100002222212211121
413302231002110
5231431412210
620550013324
73145130245
oct762550224
9302885747
10130732180
1167882027
1237947244
1321113b27
1413510ccc
15b7256da
hex7cad094

130732180 has 12 divisors (see below), whose sum is σ = 274537620. Its totient is φ = 52292864.

The previous prime is 130732171. The next prime is 130732201. The reversal of 130732180 is 81237031.

It can be written as a sum of positive squares in 2 ways, for example, as 54937744 + 75794436 = 7412^2 + 8706^2 .

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 3268285 + ... + 3268324.

It is an arithmetic number, because the mean of its divisors is an integer number (22878135).

Almost surely, 2130732180 is an apocalyptic number.

130732180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

130732180 is an abundant number, since it is smaller than the sum of its proper divisors (143805440).

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

130732180 is a wasteful number, since it uses less digits than its factorization.

130732180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6536618 (or 6536616 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 130732180 is about 11433.8173852830. The cubic root of 130732180 is about 507.5289669376.

The spelling of 130732180 in words is "one hundred thirty million, seven hundred thirty-two thousand, one hundred eighty".

Divisors: 1 2 4 5 10 20 6536609 13073218 26146436 32683045 65366090 130732180