Base | Representation |
---|---|
bin | 1000001000110… |
… | …11110010110101 |
3 | 11202110112121010 |
4 | 10010123302311 |
5 | 114434140120 |
6 | 10435142433 |
7 | 1456203435 |
oct | 404336265 |
9 | 152415533 |
10 | 68271285 |
11 | 355a0255 |
12 | 1aa44a19 |
13 | 111b4a14 |
14 | 90d22c5 |
15 | 5ed87e0 |
hex | 411bcb5 |
68271285 has 8 divisors (see below), whose sum is σ = 109234080. Its totient is φ = 36411344.
The previous prime is 68271283. The next prime is 68271299. The reversal of 68271285 is 58217286.
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 68271285 - 21 = 68271283 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (68271283) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2275695 + ... + 2275724.
It is an arithmetic number, because the mean of its divisors is an integer number (13654260).
Almost surely, 268271285 is an apocalyptic number.
It is an amenable number.
68271285 is a deficient number, since it is larger than the sum of its proper divisors (40962795).
68271285 is a wasteful number, since it uses less digits than its factorization.
68271285 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4551427.
The product of its digits is 53760, while the sum is 39.
The square root of 68271285 is about 8262.6439473089. The cubic root of 68271285 is about 408.7075800698.
The spelling of 68271285 in words is "sixty-eight million, two hundred seventy-one thousand, two hundred eighty-five".
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