Base | Representation |
---|---|
bin | 111110111111… |
… | …1111111000001 |
3 | 2022011002202100 |
4 | 1331333333001 |
5 | 31423430311 |
6 | 3135541013 |
7 | 550515420 |
oct | 175777701 |
9 | 68132670 |
10 | 33030081 |
11 | 1770aa97 |
12 | b08a769 |
13 | 6ac6236 |
14 | 455b2b7 |
15 | 2d76a56 |
hex | 1f7ffc1 |
33030081 has 12 divisors (see below), whose sum is σ = 54525952. Its totient is φ = 18874296.
The previous prime is 33030079. The next prime is 33030083. The reversal of 33030081 is 18003033.
It is an interprime number because it is at equal distance from previous prime (33030079) and next prime (33030083).
It is not a de Polignac number, because 33030081 - 21 = 33030079 is a prime.
It is a super-2 number, since 2×330300812 = 2181972501733122, which contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (33030083) 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 in 11 ways as a sum of consecutive naturals, for example, 262081 + ... + 262206.
Almost surely, 233030081 is an apocalyptic number.
It is an amenable number.
33030081 is a deficient number, since it is larger than the sum of its proper divisors (21495871).
33030081 is a wasteful number, since it uses less digits than its factorization.
33030081 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 524300 (or 524297 counting only the distinct ones).
The product of its (nonzero) digits is 216, while the sum is 18.
The square root of 33030081 is about 5747.1802651387. The cubic root of 33030081 is about 320.8508638460.
The spelling of 33030081 in words is "thirty-three million, thirty thousand, eighty-one".
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