Base | Representation |
---|---|
bin | 1000001000011… |
… | …00011010111110 |
3 | 11202100100020000 |
4 | 10010030122332 |
5 | 114430131233 |
6 | 10433535130 |
7 | 1455522033 |
oct | 404143276 |
9 | 152310200 |
10 | 68208318 |
11 | 35557a12 |
12 | 1aa144a6 |
13 | 11192169 |
14 | 90b738a |
15 | 5ec4d13 |
hex | 410c6be |
68208318 has 40 divisors (see below), whose sum is σ = 161834112. Its totient is φ = 21397824.
The previous prime is 68208313. The next prime is 68208331. The reversal of 68208318 is 81380286.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (68208313) by changing a digit.
It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 9630 + ... + 15137.
Almost surely, 268208318 is an apocalyptic number.
68208318 is an abundant number, since it is smaller than the sum of its proper divisors (93625794).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68208318 is a wasteful number, since it uses less digits than its factorization.
68208318 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 24798 (or 24789 counting only the distinct ones).
The product of its (nonzero) digits is 18432, while the sum is 36.
The square root of 68208318 is about 8258.8327262392. The cubic root of 68208318 is about 408.5818903008.
The spelling of 68208318 in words is "sixty-eight million, two hundred eight thousand, three hundred eighteen".
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