Base | Representation |
---|---|
bin | 1000000110110… |
… | …11101110000100 |
3 | 11201222012120210 |
4 | 10003123232010 |
5 | 114402240321 |
6 | 10425355420 |
7 | 1454031330 |
oct | 403335604 |
9 | 151865523 |
10 | 68008836 |
11 | 35431055 |
12 | 1a938b70 |
13 | 1112241c |
14 | 90647c0 |
15 | 5e85b76 |
hex | 40dbb84 |
68008836 has 24 divisors (see below), whose sum is σ = 181357120. Its totient is φ = 19431072.
The previous prime is 68008817. The next prime is 68008867. The reversal of 68008836 is 63880086.
It is a junction number, because it is equal to n+sod(n) for n = 68008794 and 68008803.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 404731 + ... + 404898.
Almost surely, 268008836 is an apocalyptic number.
It is an amenable number.
68008836 is an abundant number, since it is smaller than the sum of its proper divisors (113348284).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68008836 is a wasteful number, since it uses less digits than its factorization.
68008836 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 809643 (or 809641 counting only the distinct ones).
The product of its (nonzero) digits is 55296, while the sum is 39.
The square root of 68008836 is about 8246.7469950278. The cubic root of 68008836 is about 408.1831885949.
The spelling of 68008836 in words is "sixty-eight million, eight thousand, eight hundred thirty-six".
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