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12930513509 = 312531271999
BaseRepresentation
bin11000000101011011…
…11111101001100101
31020101011001010220202
430002231333221211
5202440202413014
65535025440245
7635300360054
oct140255775145
936334033822
1012930513509
115535a35201
12260a4a0085
1312b0b82b34
148a943c39b
1550a2c83de
hex302b7fa65

12930513509 has 24 divisors (see below), whose sum is σ = 13727232000. Its totient is φ = 12174533280.

The previous prime is 12930513467. The next prime is 12930513527. The reversal of 12930513509 is 90531503921.

It is a happy number.

It is not a de Polignac number, because 12930513509 - 216 = 12930447973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12930513529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6467492 + ... + 6469490.

It is an arithmetic number, because the mean of its divisors is an integer number (571968000).

Almost surely, 212930513509 is an apocalyptic number.

It is an amenable number.

12930513509 is a deficient number, since it is larger than the sum of its proper divisors (796718491).

12930513509 is a wasteful number, since it uses less digits than its factorization.

12930513509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2241 (or 2210 counting only the distinct ones).

The product of its (nonzero) digits is 36450, while the sum is 38.

The spelling of 12930513509 in words is "twelve billion, nine hundred thirty million, five hundred thirteen thousand, five hundred nine".

Divisors: 1 31 53 127 961 1643 1999 3937 6731 50933 61969 105947 122047 208661 253873 1921039 3284357 6468491 7870063 13455269 101815067 243971953 417113339 12930513509