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68396109165306 = 23213592349348483
BaseRepresentation
bin11111000110100101101011…
…10010100111001011111010
322222011121022110001102000200
433203102311302213023322
532431100212421242211
6401244423324343030
720256312226336416
oct1743226562471372
9288147273042020
1068396109165306
111a87a6995a4a7a
12780775a6a4a76
132c21957991720
1412c656451dd46
157d9216a51b56
hex3e34b5ca72fa

68396109165306 has 48 divisors (see below), whose sum is σ = 159617868891936. Its totient is φ = 21041403149088.

The previous prime is 68396109165299. The next prime is 68396109165331. The reversal of 68396109165306 is 60356190169386.

68396109165306 is a `hidden beast` number, since 6 + 8 + 3 + 9 + 6 + 1 + 0 + 91 + 6 + 530 + 6 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23288260 + ... + 26060223.

It is an arithmetic number, because the mean of its divisors is an integer number (3325372268582).

Almost surely, 268396109165306 is an apocalyptic number.

68396109165306 is an abundant number, since it is smaller than the sum of its proper divisors (91221759726630).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68396109165306 is a wasteful number, since it uses less digits than its factorization.

68396109165306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49354427 (or 49354424 counting only the distinct ones).

The product of its (nonzero) digits is 37791360, while the sum is 63.

The spelling of 68396109165306 in words is "sixty-eight trillion, three hundred ninety-six billion, one hundred nine million, one hundred sixty-five thousand, three hundred six".

Divisors: 1 2 3 6 9 13 18 26 39 78 117 234 5923 11846 17769 35538 53307 76999 106614 153998 230997 461994 692991 1385982 49348483 98696966 148045449 296090898 444136347 641530279 888272694 1283060558 1924590837 3849181674 5773772511 11547545022 292291064809 584582129618 876873194427 1753746388854 2630619583281 3799783842517 5261239166562 7599567685034 11399351527551 22798703055102 34198054582653 68396109165306