Base | Representation |
---|---|
bin | 1000001001001… |
… | …00111000000101 |
3 | 11202112102121220 |
4 | 10010210320011 |
5 | 114441332420 |
6 | 10440030553 |
7 | 1456420050 |
oct | 404447005 |
9 | 152472556 |
10 | 68308485 |
11 | 356161a3 |
12 | 1aa62459 |
13 | 111c892b |
14 | 9101a97 |
15 | 5ee4840 |
hex | 4124e05 |
68308485 has 32 divisors (see below), whose sum is σ = 129219840. Its totient is φ = 30148608.
The previous prime is 68308483. The next prime is 68308517. The reversal of 68308485 is 58480386.
It is not a de Polignac number, because 68308485 - 21 = 68308483 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (68308483) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8172 + ... + 14261.
It is an arithmetic number, because the mean of its divisors is an integer number (4038120).
Almost surely, 268308485 is an apocalyptic number.
It is an amenable number.
68308485 is a deficient number, since it is larger than the sum of its proper divisors (60911355).
68308485 is a wasteful number, since it uses less digits than its factorization.
68308485 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 22477.
The product of its (nonzero) digits is 184320, while the sum is 42.
The square root of 68308485 is about 8264.8947361718. The cubic root of 68308485 is about 408.7817994694.
The spelling of 68308485 in words is "sixty-eight million, three hundred eight thousand, four hundred eighty-five".
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