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12758839444 = 2213597158573
BaseRepresentation
bin10111110000111110…
…00111000010010100
31012221012000012101001
423320133013002110
5202112230330234
65510014113044
7631114226431
oct137037070224
935835005331
1012758839444
115458039a0a
122580aab784
131284435850
14890710b88
154ea1b6d14
hex2f87c7094

12758839444 has 48 divisors (see below), whose sum is σ = 24797888640. Its totient is φ = 5707255680.

The previous prime is 12758839417. The next prime is 12758839459. The reversal of 12758839444 is 44493885721.

12758839444 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 188542 + ... + 247114.

It is an arithmetic number, because the mean of its divisors is an integer number (516622680).

Almost surely, 212758839444 is an apocalyptic number.

It is an amenable number.

12758839444 is a deficient number, since it is larger than the sum of its proper divisors (12039049196).

12758839444 is a wasteful number, since it uses less digits than its factorization.

12758839444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58720 (or 58718 counting only the distinct ones).

The product of its digits is 7741440, while the sum is 55.

The spelling of 12758839444 in words is "twelve billion, seven hundred fifty-eight million, eight hundred thirty-nine thousand, four hundred forty-four".

Divisors: 1 2 4 13 26 52 59 71 118 142 236 284 767 923 1534 1846 3068 3692 4189 8378 16756 54457 58573 108914 117146 217828 234292 761449 1522898 3045796 3455807 4158683 6911614 8317366 13823228 16634732 44925491 54062879 89850982 108125758 179701964 216251516 245362297 490724594 981449188 3189709861 6379419722 12758839444