Base | Representation |
---|---|
bin | 1000001100111… |
… | …00111001011001 |
3 | 11210110101222110 |
4 | 10012130321121 |
5 | 120103100324 |
6 | 10454342533 |
7 | 1463535231 |
oct | 406347131 |
9 | 153411873 |
10 | 68800089 |
11 | 35921586 |
12 | 1b05aa49 |
13 | 1133b617 |
14 | 91cccc1 |
15 | 6090329 |
hex | 419ce59 |
68800089 has 16 divisors (see below), whose sum is σ = 94052160. Its totient is φ = 44721600.
The previous prime is 68800079. The next prime is 68800211. The reversal of 68800089 is 98000886.
It is not a de Polignac number, because 68800089 - 217 = 68669017 is a prime.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (68800049) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18607 + ... + 21995.
It is an arithmetic number, because the mean of its divisors is an integer number (5878260).
Almost surely, 268800089 is an apocalyptic number.
It is an amenable number.
68800089 is a deficient number, since it is larger than the sum of its proper divisors (25252071).
68800089 is a wasteful number, since it uses less digits than its factorization.
68800089 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3560.
The product of its (nonzero) digits is 27648, while the sum is 39.
The square root of 68800089 is about 8294.5819062807. The cubic root of 68800089 is about 409.7600995927.
The spelling of 68800089 in words is "sixty-eight million, eight hundred thousand, eighty-nine".
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