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68301893155854 = 23733492237199741
BaseRepresentation
bin11111000011110110001100…
…00101000011110000001110
322221211121010101000020012010
433201323012011003300032
532423024234121441404
6401133242340322050
720246435404433211
oct1741730605036016
9287747111006163
1068301893155854
111a843741072656
1277b14459a3326
132c15ac15797c7
1412c1b8771d778
157d6a504d2189
hex3e1ec6143c0e

68301893155854 has 64 divisors (see below), whose sum is σ = 138934622836800. Its totient is φ = 22380953287680.

The previous prime is 68301893155789. The next prime is 68301893155871. The reversal of 68301893155854 is 45855139810386.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 341852424 + ... + 342052164.

It is an arithmetic number, because the mean of its divisors is an integer number (2170853481825).

Almost surely, 268301893155854 is an apocalyptic number.

68301893155854 is an abundant number, since it is smaller than the sum of its proper divisors (70632729680946).

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

68301893155854 is a wasteful number, since it uses less digits than its factorization.

68301893155854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202405.

The product of its (nonzero) digits is 124416000, while the sum is 66.

The spelling of 68301893155854 in words is "sixty-eight trillion, three hundred one billion, eight hundred ninety-three million, one hundred fifty-five thousand, eight hundred fifty-four".

Divisors: 1 2 3 6 73 146 219 349 438 698 1047 2094 2237 4474 6711 13422 25477 50954 76431 152862 163301 199741 326602 399482 489903 599223 780713 979806 1198446 1561426 2342139 4684278 14581093 29162186 43743279 56992049 69709609 87486558 113984098 139419218 170976147 209128827 341952294 418257654 446820617 893641234 1340461851 2680923702 5088801457 10177602914 15266404371 30532808742 32617905041 65235810082 97853715123 155940395333 195707430246 311880790666 467821185999 935642371998 11383648859309 22767297718618 34150946577927 68301893155854