Base | Representation |
---|---|
bin | 1000000110110… |
… | …10010001000101 |
3 | 11201221220102101 |
4 | 10003122101011 |
5 | 114402043020 |
6 | 10425312101 |
7 | 1454005066 |
oct | 403322105 |
9 | 151856371 |
10 | 68002885 |
11 | 35427635 |
12 | 1a935631 |
13 | 1111c7c2 |
14 | 906256d |
15 | 5e8400a |
hex | 40da445 |
68002885 has 8 divisors (see below), whose sum is σ = 81651960. Its totient is φ = 54369984.
The previous prime is 68002841. The next prime is 68002939. The reversal of 68002885 is 58820086.
It can be written as a sum of positive squares in 4 ways, for example, as 88804 + 67914081 = 298^2 + 8241^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 68002885 - 27 = 68002757 is a prime.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9099 + ... + 14791.
It is an arithmetic number, because the mean of its divisors is an integer number (10206495).
Almost surely, 268002885 is an apocalyptic number.
It is an amenable number.
68002885 is a deficient number, since it is larger than the sum of its proper divisors (13649075).
68002885 is a wasteful number, since it uses less digits than its factorization.
68002885 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 8087.
The product of its (nonzero) digits is 30720, while the sum is 37.
The square root of 68002885 is about 8246.3861781995. The cubic root of 68002885 is about 408.1712824508.
The spelling of 68002885 in words is "sixty-eight million, two thousand, eight hundred eighty-five".
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