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12953128959 = 33479745517
BaseRepresentation
bin11000001000001000…
…10000111111111111
31020102201121010111000
430010010100333333
5203012000111314
65541154301343
7635663531241
oct140404207777
936381533430
1012953128959
115547781561
122615b87853
1312b5770864
148ac448091
1550c294209
hex304110fff

12953128959 has 8 divisors (see below), whose sum is σ = 19189820720. Its totient is φ = 8635419288.

The previous prime is 12953128931. The next prime is 12953128963. The reversal of 12953128959 is 95982135921.

It is a happy number.

12953128959 is a `hidden beast` number, since 1 + 29 + 531 + 2 + 89 + 5 + 9 = 666.

12953128959 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12953128959 - 213 = 12953120767 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 (12953128999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 239872732 + ... + 239872785.

It is an arithmetic number, because the mean of its divisors is an integer number (2398727590).

Almost surely, 212953128959 is an apocalyptic number.

12953128959 is a deficient number, since it is larger than the sum of its proper divisors (6236691761).

12953128959 is an equidigital number, since it uses as much as digits as its factorization.

12953128959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 479745526 (or 479745520 counting only the distinct ones).

The product of its digits is 1749600, while the sum is 54.

The spelling of 12953128959 in words is "twelve billion, nine hundred fifty-three million, one hundred twenty-eight thousand, nine hundred fifty-nine".

Divisors: 1 3 9 27 479745517 1439236551 4317709653 12953128959