Base | Representation |
---|---|
bin | 1000001001000… |
… | …10001000110001 |
3 | 11202111212020100 |
4 | 10010202020301 |
5 | 114441003030 |
6 | 10435503013 |
7 | 1456342251 |
oct | 404421061 |
9 | 152455210 |
10 | 68297265 |
11 | 35608823 |
12 | 1aa57a69 |
13 | 111c37aa |
14 | 90db961 |
15 | 5ee1360 |
hex | 4122231 |
68297265 has 24 divisors (see below), whose sum is σ = 119719080. Its totient is φ = 36013824.
The previous prime is 68297221. The next prime is 68297363. The reversal of 68297265 is 56279286.
It can be written as a sum of positive squares in 4 ways, for example, as 531441 + 67765824 = 729^2 + 8232^2 .
It is not a de Polignac number, because 68297265 - 214 = 68280881 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (45).
It is a self number, because there is not a number n which added to its sum of digits gives 68297265.
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4522 + ... + 12531.
It is an arithmetic number, because the mean of its divisors is an integer number (4988295).
Almost surely, 268297265 is an apocalyptic number.
It is an amenable number.
68297265 is a deficient number, since it is larger than the sum of its proper divisors (51421815).
68297265 is a wasteful number, since it uses less digits than its factorization.
68297265 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 17153 (or 17150 counting only the distinct ones).
The product of its digits is 362880, while the sum is 45.
The square root of 68297265 is about 8264.2159337713. The cubic root of 68297265 is about 408.7594167794.
The spelling of 68297265 in words is "sixty-eight million, two hundred ninety-seven thousand, two hundred sixty-five".
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