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12544485119 = 71892298669
BaseRepresentation
bin10111010111011010…
…11010011011111111
31012101020122212111222
423223231122123333
5201142342010434
65432435503555
7622602235625
oct135355323377
935336585458
1012544485119
115358042381
122521157bbb
13124bbc3a7a
14870073515
154d647472e
hex2ebb5a6ff

12544485119 has 16 divisors (see below), whose sum is σ = 12921768000. Its totient is φ = 12174032640.

The previous prime is 12544485097. The next prime is 12544485139. The reversal of 12544485119 is 91158444521.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12544485119 is a prime.

It is a super-2 number, since 2×125444851192 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12544485119.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12544485139) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1442717 + ... + 1451385.

It is an arithmetic number, because the mean of its divisors is an integer number (807610500).

Almost surely, 212544485119 is an apocalyptic number.

12544485119 is a deficient number, since it is larger than the sum of its proper divisors (377282881).

12544485119 is an equidigital number, since it uses as much as digits as its factorization.

12544485119 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9058.

The product of its digits is 230400, while the sum is 44.

The spelling of 12544485119 in words is "twelve billion, five hundred forty-four million, four hundred eighty-five thousand, one hundred nineteen".

Divisors: 1 71 89 229 6319 8669 16259 20381 615499 771541 1447051 1985201 54779411 140949271 176682889 12544485119