Base | Representation |
---|---|
bin | 1000001010000… |
… | …10001111011000 |
3 | 11202202112121112 |
4 | 10011002033120 |
5 | 120004210020 |
6 | 10442355452 |
7 | 1460430521 |
oct | 405021730 |
9 | 152675545 |
10 | 68428760 |
11 | 356985a4 |
12 | 1aabbb88 |
13 | 1123b5ba |
14 | 9133848 |
15 | 601a2c5 |
hex | 41423d8 |
68428760 has 32 divisors (see below), whose sum is σ = 155100960. Its totient is φ = 27169536.
The previous prime is 68428753. The next prime is 68428793. The reversal of 68428760 is 6782486.
It is a congruent number.
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, 764 + ... + 11723.
It is an arithmetic number, because the mean of its divisors is an integer number (4846905).
Almost surely, 268428760 is an apocalyptic number.
It is an amenable number.
68428760 is an abundant number, since it is smaller than the sum of its proper divisors (86672200).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68428760 is a wasteful number, since it uses less digits than its factorization.
68428760 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 12635 (or 12631 counting only the distinct ones).
The product of its (nonzero) digits is 129024, while the sum is 41.
The square root of 68428760 is about 8272.1677932692. The cubic root of 68428760 is about 409.0215813083.
The spelling of 68428760 in words is "sixty-eight million, four hundred twenty-eight thousand, seven hundred sixty".
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