Base | Representation |
---|---|
bin | 1000001011001… |
… | …00001111011001 |
3 | 11210000121122111 |
4 | 10011210033121 |
5 | 120023134100 |
6 | 10445352321 |
7 | 1461550531 |
oct | 405441731 |
9 | 153017574 |
10 | 68568025 |
11 | 35783199 |
12 | 1ab686a1 |
13 | 11289ac6 |
14 | 916c4c1 |
15 | 60466ba |
hex | 41643d9 |
68568025 has 6 divisors (see below), whose sum is σ = 85024382. Its totient is φ = 54854400.
The previous prime is 68568013. The next prime is 68568047. The reversal of 68568025 is 52086586.
It can be written as a sum of positive squares in 3 ways, for example, as 1016064 + 67551961 = 1008^2 + 8219^2 .
It is not a de Polignac number, because 68568025 - 27 = 68567897 is a prime.
It is a Duffinian number.
It is an unprimeable number.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1371336 + ... + 1371385.
Almost surely, 268568025 is an apocalyptic number.
It is an amenable number.
68568025 is a deficient number, since it is larger than the sum of its proper divisors (16456357).
68568025 is a wasteful number, since it uses less digits than its factorization.
68568025 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2742731 (or 2742726 counting only the distinct ones).
The product of its (nonzero) digits is 115200, while the sum is 40.
The square root of 68568025 is about 8280.5811994087. The cubic root of 68568025 is about 409.2988711068.
The spelling of 68568025 in words is "sixty-eight million, five hundred sixty-eight thousand, twenty-five".
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