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130518045 = 32573671129
BaseRepresentation
bin1111100011110…
…00110000011101
3100002121000002200
413301320300131
5231403034140
620541242113
73143246040
oct761706035
9302530080
10130518045
1167746159
1237863339
132106a518
1413496c57
15b6d2030
hex7c78c1d

130518045 has 48 divisors (see below), whose sum is σ = 259484160. Its totient is φ = 59450112.

The previous prime is 130518043. The next prime is 130518071. The reversal of 130518045 is 540815031.

It is not a de Polignac number, because 130518045 - 21 = 130518043 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130518041) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 115041 + ... + 116169.

It is an arithmetic number, because the mean of its divisors is an integer number (5405920).

Almost surely, 2130518045 is an apocalyptic number.

130518045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

130518045 is a deficient number, since it is larger than the sum of its proper divisors (128966115).

130518045 is a wasteful number, since it uses less digits than its factorization.

130518045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1514 (or 1511 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The square root of 130518045 is about 11424.4494396885. The cubic root of 130518045 is about 507.2517102659.

The spelling of 130518045 in words is "one hundred thirty million, five hundred eighteen thousand, forty-five".

Divisors: 1 3 5 7 9 15 21 35 45 63 105 315 367 1101 1129 1835 2569 3303 3387 5505 5645 7707 7903 10161 12845 16515 16935 23121 23709 38535 39515 50805 71127 115605 118545 355635 414343 1243029 2071715 2900401 3729087 6215145 8701203 14502005 18645435 26103609 43506015 130518045