Base | Representation |
---|---|
bin | 1000001000001… |
… | …10110000001001 |
3 | 11202022011100222 |
4 | 10010012300021 |
5 | 114423410342 |
6 | 10433235425 |
7 | 1455364241 |
oct | 404066011 |
9 | 152264328 |
10 | 68185097 |
11 | 35541522 |
12 | 1aa02b75 |
13 | 11184716 |
14 | 90acb21 |
15 | 5ebced2 |
hex | 4106c09 |
68185097 has 2 divisors, whose sum is σ = 68185098. Its totient is φ = 68185096.
The previous prime is 68185069. The next prime is 68185099. The reversal of 68185097 is 79058186.
It is a happy number.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 53523856 + 14661241 = 7316^2 + 3829^2 .
It is a cyclic number.
It is not a de Polignac number, because 68185097 - 220 = 67136521 is a prime.
Together with 68185099, it forms a pair of twin primes.
It is a Chen prime.
It is not a weakly prime, because it can be changed into another prime (68185099) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34092548 + 34092549.
It is an arithmetic number, because the mean of its divisors is an integer number (34092549).
Almost surely, 268185097 is an apocalyptic number.
It is an amenable number.
68185097 is a deficient number, since it is larger than the sum of its proper divisors (1).
68185097 is an equidigital number, since it uses as much as digits as its factorization.
68185097 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 120960, while the sum is 44.
The square root of 68185097 is about 8257.4267783614. The cubic root of 68185097 is about 408.5355188453.
The spelling of 68185097 in words is "sixty-eight million, one hundred eighty-five thousand, ninety-seven".
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