Base | Representation |
---|---|
bin | 11111000011110110001100… |
… | …00101000011110000001110 |
3 | 22221211121010101000020012010 |
4 | 33201323012011003300032 |
5 | 32423024234121441404 |
6 | 401133242340322050 |
7 | 20246435404433211 |
oct | 1741730605036016 |
9 | 287747111006163 |
10 | 68301893155854 |
11 | 1a843741072656 |
12 | 77b14459a3326 |
13 | 2c15ac15797c7 |
14 | 12c1b8771d778 |
15 | 7d6a504d2189 |
hex | 3e1ec6143c0e |
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".
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