Base | Representation |
---|---|
bin | 1000001001000… |
… | …11010100110000 |
3 | 11202112002220110 |
4 | 10010203110300 |
5 | 114441132003 |
6 | 10435541320 |
7 | 1456362366 |
oct | 404432460 |
9 | 152462813 |
10 | 68302128 |
11 | 35611444 |
12 | 1aa5a840 |
13 | 111c5a7b |
14 | 90dd636 |
15 | 5ee2a03 |
hex | 4123530 |
68302128 has 20 divisors (see below), whose sum is σ = 176447288. Its totient is φ = 22767360.
The previous prime is 68302123. The next prime is 68302133. The reversal of 68302128 is 82120386.
It is an interprime number because it is at equal distance from previous prime (68302123) and next prime (68302133).
It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.
It is a junction number, because it is equal to n+sod(n) for n = 68302095 and 68302104.
It is not an unprimeable number, because it can be changed into a prime (68302123) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 711433 + ... + 711528.
Almost surely, 268302128 is an apocalyptic number.
It is an amenable number.
68302128 is an abundant number, since it is smaller than the sum of its proper divisors (108145160).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68302128 is a wasteful number, since it uses less digits than its factorization.
68302128 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1422972 (or 1422966 counting only the distinct ones).
The product of its (nonzero) digits is 4608, while the sum is 30.
The square root of 68302128 is about 8264.5101488231. The cubic root of 68302128 is about 408.7691182409.
The spelling of 68302128 in words is "sixty-eight million, three hundred two thousand, one hundred twenty-eight".
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