Base | Representation |
---|---|
bin | 1000000111000… |
… | …01001110000110 |
3 | 11202000100111020 |
4 | 10003201032012 |
5 | 114404000431 |
6 | 10430052010 |
7 | 1454154114 |
oct | 403411606 |
9 | 152010436 |
10 | 68031366 |
11 | 35446a77 |
12 | 1a94a006 |
13 | 1112c760 |
14 | 906cab4 |
15 | 5e8c696 |
hex | 40e1386 |
68031366 has 32 divisors (see below), whose sum is σ = 149022720. Its totient is φ = 20576544.
The previous prime is 68031283. The next prime is 68031367. The reversal of 68031366 is 66313086.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (68031367) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2790 + ... + 11993.
It is an arithmetic number, because the mean of its divisors is an integer number (4656960).
Almost surely, 268031366 is an apocalyptic number.
68031366 is an abundant number, since it is smaller than the sum of its proper divisors (80991354).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68031366 is a wasteful number, since it uses less digits than its factorization.
68031366 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 14860.
The product of its (nonzero) digits is 15552, while the sum is 33.
The square root of 68031366 is about 8248.1128750763. The cubic root of 68031366 is about 408.2282579929.
The spelling of 68031366 in words is "sixty-eight million, thirty-one thousand, three hundred sixty-six".
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