Base | Representation |
---|---|
bin | 111111111010011110… |
… | …001111010010001101 |
3 | 20120010201022121210122 |
4 | 333322132033102031 |
5 | 2111021421142430 |
6 | 51305433114325 |
7 | 4646430445151 |
oct | 777236172215 |
9 | 216121277718 |
10 | 68626740365 |
11 | 27117007857 |
12 | 11372b589a5 |
13 | 6618a9c2a1 |
14 | 34704a5061 |
15 | 1bb9c9dee5 |
hex | ffa78f48d |
68626740365 has 16 divisors (see below), whose sum is σ = 82823797056. Its totient is φ = 54587433600.
The previous prime is 68626740353. The next prime is 68626740373. The reversal of 68626740365 is 56304762686.
It is not a de Polignac number, because 68626740365 - 214 = 68626723981 is a prime.
It is a Duffinian number.
It is a Curzon number.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1058330 + ... + 1121300.
It is an arithmetic number, because the mean of its divisors is an integer number (5176487316).
Almost surely, 268626740365 is an apocalyptic number.
It is an amenable number.
68626740365 is a deficient number, since it is larger than the sum of its proper divisors (14197056691).
68626740365 is a wasteful number, since it uses less digits than its factorization.
68626740365 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 64220.
The product of its (nonzero) digits is 8709120, while the sum is 53.
The spelling of 68626740365 in words is "sixty-eight billion, six hundred twenty-six million, seven hundred forty thousand, three hundred sixty-five".
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