Base | Representation |
---|---|
bin | 1000001001000… |
… | …01011001100111 |
3 | 11202111201002120 |
4 | 10010201121213 |
5 | 114440403442 |
6 | 10435441023 |
7 | 1456330410 |
oct | 404413147 |
9 | 152451076 |
10 | 68294247 |
11 | 3560652a |
12 | 1aa56173 |
13 | 111c22c8 |
14 | 90da807 |
15 | 5ee04ec |
hex | 4121667 |
68294247 has 16 divisors (see below), whose sum is σ = 104313600. Its totient is φ = 38932992.
The previous prime is 68294231. The next prime is 68294251. The reversal of 68294247 is 74249286.
It is not a de Polignac number, because 68294247 - 24 = 68294231 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 68294199 and 68294208.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (68294647) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5808 + ... + 13050.
It is an arithmetic number, because the mean of its divisors is an integer number (6519600).
Almost surely, 268294247 is an apocalyptic number.
68294247 is a deficient number, since it is larger than the sum of its proper divisors (36019353).
68294247 is a wasteful number, since it uses less digits than its factorization.
68294247 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 7702.
The product of its digits is 193536, while the sum is 42.
The square root of 68294247 is about 8264.0333372997. The cubic root of 68294247 is about 408.7533957765.
The spelling of 68294247 in words is "sixty-eight million, two hundred ninety-four thousand, two hundred forty-seven".
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