Base | Representation |
---|---|
bin | 111110111111… |
… | …1101011010011 |
3 | 2022011001000121 |
4 | 1331333223103 |
5 | 31423410234 |
6 | 3135531111 |
7 | 550511635 |
oct | 175775323 |
9 | 68131017 |
10 | 33028819 |
11 | 1770a04a |
12 | b089a97 |
13 | 6ac57a5 |
14 | 455aa55 |
15 | 2d764b4 |
hex | 1f7fad3 |
33028819 has 2 divisors, whose sum is σ = 33028820. Its totient is φ = 33028818.
The previous prime is 33028817. The next prime is 33028829. The reversal of 33028819 is 91882033.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 33028819 - 21 = 33028817 is a prime.
It is a super-2 number, since 2×330288192 = 2181805769069522, which contains 22 as substring.
Together with 33028817, it forms a pair of twin primes.
It is not a weakly prime, because it can be changed into another prime (33028811) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16514409 + 16514410.
It is an arithmetic number, because the mean of its divisors is an integer number (16514410).
Almost surely, 233028819 is an apocalyptic number.
33028819 is a deficient number, since it is larger than the sum of its proper divisors (1).
33028819 is an equidigital number, since it uses as much as digits as its factorization.
33028819 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 10368, while the sum is 34.
The square root of 33028819 is about 5747.0704711183. The cubic root of 33028819 is about 320.8467774805.
It can be divided in two parts, 3302 and 8819, that added together give a palindrome (12121).
The spelling of 33028819 in words is "thirty-three million, twenty-eight thousand, eight hundred nineteen".
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