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12895718055 = 3511315347569
BaseRepresentation
bin11000000001010010…
…10000101010100111
31020021201120100112020
430000221100222213
5202402300434210
65531343554223
7634365536433
oct140051205247
936251510466
1012895718055
115518329930
1225ba8bb973
1312a68bc1cc
148a49819c3
15507203770
hex300a50aa7

12895718055 has 64 divisors (see below), whose sum is σ = 23673876480. Its totient is φ = 5936486400.

The previous prime is 12895718053. The next prime is 12895718063. The reversal of 12895718055 is 55081759821.

It is not a de Polignac number, because 12895718055 - 21 = 12895718053 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12895717989 and 12895718007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12895718053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 247311 + ... + 294879.

It is an arithmetic number, because the mean of its divisors is an integer number (369904320).

Almost surely, 212895718055 is an apocalyptic number.

12895718055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12895718055 is a deficient number, since it is larger than the sum of its proper divisors (10778158425).

12895718055 is a wasteful number, since it uses less digits than its factorization.

12895718055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47672.

The product of its (nonzero) digits is 1008000, while the sum is 51.

The spelling of 12895718055 in words is "twelve billion, eight hundred ninety-five million, seven hundred eighteen thousand, fifty-five".

Divisors: 1 3 5 11 15 31 33 53 55 93 155 159 165 265 341 465 583 795 1023 1643 1705 1749 2915 4929 5115 8215 8745 18073 24645 47569 54219 90365 142707 237845 271095 523259 713535 1474639 1569777 2521157 2616295 4423917 7373195 7563471 7848885 12605785 16221029 22119585 27732727 37817355 48663087 78155867 81105145 83198181 138663635 234467601 243315435 390779335 415990905 859714537 1172338005 2579143611 4298572685 12895718055