Base | Representation |
---|---|
bin | 111001010010… |
… | …0010001110011 |
3 | 2002111211112202 |
4 | 1302210101303 |
5 | 30142024021 |
6 | 2551413415 |
7 | 513163541 |
oct | 162442163 |
9 | 62454482 |
10 | 30033011 |
11 | 15a53278 |
12 | a08426b |
13 | 62b7018 |
14 | 3dbad91 |
15 | 2983a0b |
hex | 1ca4473 |
30033011 has 4 divisors (see below), whose sum is σ = 30844752. Its totient is φ = 29221272.
The previous prime is 30033007. The next prime is 30033019. The reversal of 30033011 is 11033003.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11033003 = 149 ⋅74047.
It is a cyclic number.
It is not a de Polignac number, because 30033011 - 22 = 30033007 is a prime.
It is a super-2 number, since 2×300330112 = 1803963499452242, which contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 30032983 and 30033001.
It is not an unprimeable number, because it can be changed into a prime (30033019) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 405815 + ... + 405888.
It is an arithmetic number, because the mean of its divisors is an integer number (7711188).
Almost surely, 230033011 is an apocalyptic number.
30033011 is a deficient number, since it is larger than the sum of its proper divisors (811741).
30033011 is an equidigital number, since it uses as much as digits as its factorization.
30033011 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 811740.
The product of its (nonzero) digits is 27, while the sum is 11.
The square root of 30033011 is about 5480.2382247490. The cubic root of 30033011 is about 310.8371786539.
Adding to 30033011 its reverse (11033003), we get a palindrome (41066014).
The spelling of 30033011 in words is "thirty million, thirty-three thousand, eleven".
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