Base | Representation |
---|---|
bin | 1000001001000… |
… | …10100000010001 |
3 | 11202111221022001 |
4 | 10010202200101 |
5 | 114441030034 |
6 | 10435514001 |
7 | 1456346530 |
oct | 404424021 |
9 | 152457261 |
10 | 68298769 |
11 | 35609970 |
12 | 1aa58901 |
13 | 111c4396 |
14 | 90dc317 |
15 | 5ee1a14 |
hex | 4122811 |
68298769 has 16 divisors (see below), whose sum is σ = 85737600. Its totient is φ = 52853760.
The previous prime is 68298761. The next prime is 68298803. The reversal of 68298769 is 96789286.
It is a cyclic number.
It is not a de Polignac number, because 68298769 - 23 = 68298761 is a prime.
It is a super-2 number, since 2×682987692 = 9329443693830722, which contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (68298761) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (7) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8497 + ... + 14449.
It is an arithmetic number, because the mean of its divisors is an integer number (5358600).
Almost surely, 268298769 is an apocalyptic number.
It is an amenable number.
68298769 is a deficient number, since it is larger than the sum of its proper divisors (17438831).
68298769 is a wasteful number, since it uses less digits than its factorization.
68298769 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 6120.
The product of its digits is 2612736, while the sum is 55.
The square root of 68298769 is about 8264.3069279886. The cubic root of 68298769 is about 408.7624172395.
The spelling of 68298769 in words is "sixty-eight million, two hundred ninety-eight thousand, seven hundred sixty-nine".
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