Base | Representation |
---|---|
bin | 1000000110110… |
… | …10011000111001 |
3 | 11201221221002220 |
4 | 10003122120321 |
5 | 114402102020 |
6 | 10425314253 |
7 | 1454006412 |
oct | 403323071 |
9 | 151857086 |
10 | 68003385 |
11 | 35427a4a |
12 | 1a935989 |
13 | 1111cab8 |
14 | 9062809 |
15 | 5e84240 |
hex | 40da639 |
68003385 has 16 divisors (see below), whose sum is σ = 109213440. Its totient is φ = 36132480.
The previous prime is 68003371. The next prime is 68003389. The reversal of 68003385 is 58330086.
It is not a de Polignac number, because 68003385 - 223 = 59614777 is a prime.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (68003389) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4300 + ... + 12429.
It is an arithmetic number, because the mean of its divisors is an integer number (6825840).
Almost surely, 268003385 is an apocalyptic number.
It is an amenable number.
68003385 is a deficient number, since it is larger than the sum of its proper divisors (41210055).
68003385 is a wasteful number, since it uses less digits than its factorization.
68003385 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 17008.
The product of its (nonzero) digits is 17280, while the sum is 33.
The square root of 68003385 is about 8246.4164944538. The cubic root of 68003385 is about 408.1722828257.
The spelling of 68003385 in words is "sixty-eight million, three thousand, three hundred eighty-five".
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