Base | Representation |
---|---|
bin | 1111110101100… |
… | …0011000010001 |
3 | 11121222121020210 |
4 | 3331120120101 |
5 | 114001003124 |
6 | 10331354333 |
7 | 1434402663 |
oct | 375303021 |
9 | 147877223 |
10 | 66422289 |
11 | 3454805a |
12 | 1a2b29a9 |
13 | 109b823b |
14 | 8b70533 |
15 | 5c70a29 |
hex | 3f58611 |
66422289 has 8 divisors (see below), whose sum is σ = 90956800. Its totient is φ = 43084656.
The previous prime is 66422269. The next prime is 66422297. The reversal of 66422289 is 98222466.
66422289 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 66422289 - 212 = 66418193 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (66422219) 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, 299089 + ... + 299310.
It is an arithmetic number, because the mean of its divisors is an integer number (11369600).
Almost surely, 266422289 is an apocalyptic number.
It is an amenable number.
66422289 is a deficient number, since it is larger than the sum of its proper divisors (24534511).
66422289 is a wasteful number, since it uses less digits than its factorization.
66422289 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 598439.
The product of its digits is 82944, while the sum is 39.
The square root of 66422289 is about 8149.9870552044. The cubic root of 66422289 is about 404.9840749721.
The spelling of 66422289 in words is "sixty-six million, four hundred twenty-two thousand, two hundred eighty-nine".
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