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12620075563857 = 323832729807479
BaseRepresentation
bin1011011110100101011100…
…0111101111101101010001
31122200110121202122110122210
42313221113013233231101
53123231403321020412
642501325505222333
72441525144233146
oct267512707575521
948613552573583
1012620075563857
114026164718693
1214b9a319319a9
137070b6590b58
14318b5a1b83cd
1516d42548383c
hexb7a571efb51

12620075563857 has 32 divisors (see below), whose sum is σ = 17776446105600. Its totient is φ = 7947702342272.

The previous prime is 12620075563831. The next prime is 12620075563867. The reversal of 12620075563857 is 75836557002621.

It is a cyclic number.

It is not a de Polignac number, because 12620075563857 - 27 = 12620075563729 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12620075563797 and 12620075563806.

It is not an unprimeable number, because it can be changed into a prime (12620075563867) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15225244 + ... + 16032722.

It is an arithmetic number, because the mean of its divisors is an integer number (555513940800).

Almost surely, 212620075563857 is an apocalyptic number.

It is an amenable number.

12620075563857 is a deficient number, since it is larger than the sum of its proper divisors (5156370541743).

12620075563857 is a wasteful number, since it uses less digits than its factorization.

12620075563857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 810317.

The product of its (nonzero) digits is 21168000, while the sum is 57.

The spelling of 12620075563857 in words is "twelve trillion, six hundred twenty billion, seventy-five million, five hundred sixty-three thousand, eight hundred fifty-seven".

Divisors: 1 3 23 69 83 249 1909 2729 5727 8187 62767 188301 226507 679521 807479 2422437 5209661 15628983 18572017 55716051 67020757 201062271 1541477411 2203610191 4624432233 6610830573 50683034393 152049103179 182899645853 548698937559 4206691854619 12620075563857