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13030033 = 91114303
BaseRepresentation
bin110001101101…
…001010010001
3220111222211211
4301231022101
511313430113
61143140121
7215516302
oct61551221
926458754
1013030033
11739a725
124444641
132912aa3
141a327a9
151225b3d
hexc6d291

13030033 has 4 divisors (see below), whose sum is σ = 13045248. Its totient is φ = 13014820.

The previous prime is 13029979. The next prime is 13030037. The reversal of 13030033 is 33003031.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 33003031 = 43737547.

It is a cyclic number.

It is not a de Polignac number, because 13030033 - 29 = 13029521 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13029995 and 13030022.

It is not an unprimeable number, because it can be changed into a prime (13030037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6241 + ... + 8062.

It is an arithmetic number, because the mean of its divisors is an integer number (3261312).

Almost surely, 213030033 is an apocalyptic number.

It is an amenable number.

13030033 is a deficient number, since it is larger than the sum of its proper divisors (15215).

13030033 is an equidigital number, since it uses as much as digits as its factorization.

13030033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15214.

The product of its (nonzero) digits is 81, while the sum is 13.

The square root of 13030033 is about 3609.7137005585. The cubic root of 13030033 is about 235.3144003704.

Adding to 13030033 its reverse (33003031), we get a palindrome (46033064).

The spelling of 13030033 in words is "thirteen million, thirty thousand, thirty-three".

Divisors: 1 911 14303 13030033