Base | Representation |
---|---|
bin | 111111010110001111… |
… | …000010000000111010 |
3 | 20111120100022201211121 |
4 | 333112033002000322 |
5 | 2103300301232244 |
6 | 51125234215454 |
7 | 4625366016526 |
oct | 772617020072 |
9 | 214510281747 |
10 | 68018774074 |
11 | 26934908779 |
12 | 1122342458a |
13 | 654cb44714 |
14 | 3413846d86 |
15 | 1b8170ac84 |
hex | fd63c203a |
68018774074 has 16 divisors (see below), whose sum is σ = 102841534656. Its totient is φ = 33738594400.
The previous prime is 68018774071. The next prime is 68018774081. The reversal of 68018774074 is 47047781086.
68018774074 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is not an unprimeable number, because it can be changed into a prime (68018774071) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 331869 + ... + 496159.
It is an arithmetic number, because the mean of its divisors is an integer number (6427595916).
Almost surely, 268018774074 is an apocalyptic number.
68018774074 is a deficient number, since it is larger than the sum of its proper divisors (34822760582).
68018774074 is a wasteful number, since it uses less digits than its factorization.
68018774074 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 165941.
The product of its (nonzero) digits is 2107392, while the sum is 52.
The spelling of 68018774074 in words is "sixty-eight billion, eighteen million, seven hundred seventy-four thousand, seventy-four".
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