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12744314836 = 221121031511693
BaseRepresentation
bin10111101111001111…
…01100111111010100
31012220011200021100121
423313213230333110
5202100021033321
65504334521324
7630546613561
oct136747547724
935804607317
1012744314836
11544a919400
122578066244
13128141b6c6
1488c80d868
154e8c98441
hex2f79ecfd4

12744314836 has 72 divisors (see below), whose sum is σ = 24931018112. Its totient is φ = 5695272000.

The previous prime is 12744314813. The next prime is 12744314837. The reversal of 12744314836 is 63841344721.

It is a junction number, because it is equal to n+sod(n) for n = 12744314792 and 12744314801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12744314837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7526806 + ... + 7528498.

Almost surely, 212744314836 is an apocalyptic number.

It is an amenable number.

12744314836 is a deficient number, since it is larger than the sum of its proper divisors (12186703276).

12744314836 is a wasteful number, since it uses less digits than its factorization.

12744314836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1973 (or 1960 counting only the distinct ones).

The product of its digits is 387072, while the sum is 43.

The spelling of 12744314836 in words is "twelve billion, seven hundred forty-four million, three hundred fourteen thousand, eight hundred thirty-six".

Divisors: 1 2 4 11 22 44 103 121 151 206 242 302 412 484 604 1133 1661 1693 2266 3322 3386 4532 6644 6772 12463 15553 18271 18623 24926 31106 36542 37246 49852 62212 73084 74492 171083 174379 204853 255643 342166 348758 409706 511286 684332 697516 819412 1022572 1881913 1918169 2812073 3763826 3836338 5624146 7527652 7672676 11248292 21099859 26331229 30932803 42199718 52662458 61865606 84399436 105324916 123731212 289643519 579287038 1158574076 3186078709 6372157418 12744314836