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12745253489 = 91113990399
BaseRepresentation
bin10111101111010110…
…10010001001110001
31012220020102221221112
423313223102021301
5202100241102424
65504411003105
7630560603303
oct136753221161
935806387845
1012745253489
1154503aa651
122578439495
131281689a17
1488c9b5973
154e8dd160e
hex2f7ad2271

12745253489 has 4 divisors (see below), whose sum is σ = 12759244800. Its totient is φ = 12731262180.

The previous prime is 12745253467. The next prime is 12745253491. The reversal of 12745253489 is 98435254721.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12745253489 - 224 = 12728476273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12745258489) 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 3 ways as a sum of consecutive naturals, for example, 6994289 + ... + 6996110.

It is an arithmetic number, because the mean of its divisors is an integer number (3189811200).

Almost surely, 212745253489 is an apocalyptic number.

It is an amenable number.

12745253489 is a deficient number, since it is larger than the sum of its proper divisors (13991311).

12745253489 is an equidigital number, since it uses as much as digits as its factorization.

12745253489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13991310.

The product of its digits is 2419200, while the sum is 50.

The spelling of 12745253489 in words is "twelve billion, seven hundred forty-five million, two hundred fifty-three thousand, four hundred eighty-nine".

Divisors: 1 911 13990399 12745253489