Base | Representation |
---|---|
bin | 100000000010000110… |
… | …0010001101101011011 |
3 | 20120120002011002212121 |
4 | 1000010030101231123 |
5 | 2111340142210432 |
6 | 51333540122111 |
7 | 4653450454021 |
oct | 1000414215533 |
9 | 216502132777 |
10 | 68789803867 |
11 | 271a0061884 |
12 | 113b9696337 |
13 | 66437c3275 |
14 | 3487dd0711 |
15 | 1bc925e197 |
hex | 1004311b5b |
68789803867 has 48 divisors (see below), whose sum is σ = 78821095680. Its totient is φ = 59838912000.
The previous prime is 68789803847. The next prime is 68789803871. The reversal of 68789803867 is 76830898786.
It is not a de Polignac number, because 68789803867 - 223 = 68781415259 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 68789803796 and 68789803805.
It is not an unprimeable number, because it can be changed into a prime (68789803807) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 39375088 + ... + 39376834.
It is an arithmetic number, because the mean of its divisors is an integer number (1642106160).
Almost surely, 268789803867 is an apocalyptic number.
68789803867 is a deficient number, since it is larger than the sum of its proper divisors (10031291813).
68789803867 is a wasteful number, since it uses less digits than its factorization.
68789803867 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1972 (or 1955 counting only the distinct ones).
The product of its (nonzero) digits is 195084288, while the sum is 70.
The spelling of 68789803867 in words is "sixty-eight billion, seven hundred eighty-nine million, eight hundred three thousand, eight hundred sixty-seven".
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