Base | Representation |
---|---|
bin | 1000001000011… |
… | …00100011111110 |
3 | 11202100101000100 |
4 | 10010030203332 |
5 | 114430141034 |
6 | 10433541530 |
7 | 1455523515 |
oct | 404144376 |
9 | 152311010 |
10 | 68208894 |
11 | 35558396 |
12 | 1aa148a6 |
13 | 111924c0 |
14 | 90b767c |
15 | 5ec5099 |
hex | 410c8fe |
68208894 has 24 divisors (see below), whose sum is σ = 159154632. Its totient is φ = 20987280.
The previous prime is 68208857. The next prime is 68208929. The reversal of 68208894 is 49880286.
It is a happy number.
It is a Curzon number.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 145512 + ... + 145979.
It is an arithmetic number, because the mean of its divisors is an integer number (6631443).
Almost surely, 268208894 is an apocalyptic number.
68208894 is an abundant number, since it is smaller than the sum of its proper divisors (90945738).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68208894 is a wasteful number, since it uses less digits than its factorization.
68208894 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 291512 (or 291509 counting only the distinct ones).
The product of its (nonzero) digits is 221184, while the sum is 45.
The square root of 68208894 is about 8258.8675979216. The cubic root of 68208894 is about 408.5830404171.
The spelling of 68208894 in words is "sixty-eight million, two hundred eight thousand, eight hundred ninety-four".
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