Base | Representation |
---|---|
bin | 1000000111000… |
… | …00011100111011 |
3 | 11202000012011200 |
4 | 10003200130323 |
5 | 114403400334 |
6 | 10430025243 |
7 | 1454142000 |
oct | 403403473 |
9 | 152005150 |
10 | 68028219 |
11 | 35444676 |
12 | 1a948223 |
13 | 1112b1ac |
14 | 906b8a7 |
15 | 5e8b799 |
hex | 40e073b |
68028219 has 24 divisors (see below), whose sum is σ = 114597600. Its totient is φ = 38871504.
The previous prime is 68028199. The next prime is 68028251. The reversal of 68028219 is 91282086.
It is not a de Polignac number, because 68028219 - 25 = 68028187 is a prime.
It is a super-3 number, since 3×680282193 (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.
It is not an unprimeable number, because it can be changed into a prime (68028269) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7932 + ... + 14105.
It is an arithmetic number, because the mean of its divisors is an integer number (4774900).
Almost surely, 268028219 is an apocalyptic number.
68028219 is a deficient number, since it is larger than the sum of its proper divisors (46569381).
68028219 is a wasteful number, since it uses less digits than its factorization.
68028219 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 22064 (or 22047 counting only the distinct ones).
The product of its (nonzero) digits is 13824, while the sum is 36.
The square root of 68028219 is about 8247.9221019600. The cubic root of 68028219 is about 408.2219632782.
The spelling of 68028219 in words is "sixty-eight million, twenty-eight thousand, two hundred nineteen".
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