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30133033 = 74304719
BaseRepresentation
bin111001011110…
…0101100101001
32002200220202021
41302330230221
530203224113
62553504441
7514061260
oct162745451
962626667
1030133033
1116011437
12a112121
1363206c8
1440055d7
1529a348d
hex1cbcb29

30133033 has 4 divisors (see below), whose sum is σ = 34437760. Its totient is φ = 25828308.

The previous prime is 30133021. The next prime is 30133057. The reversal of 30133033 is 33033103.

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.

It is a cyclic number.

It is not a de Polignac number, because 30133033 - 213 = 30124841 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30132998 and 30133016.

It is not an unprimeable number, because it can be changed into a prime (30133003) 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, 2152353 + ... + 2152366.

It is an arithmetic number, because the mean of its divisors is an integer number (8609440).

Almost surely, 230133033 is an apocalyptic number.

It is an amenable number.

30133033 is a deficient number, since it is larger than the sum of its proper divisors (4304727).

30133033 is an equidigital number, since it uses as much as digits as its factorization.

30133033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4304726.

The product of its (nonzero) digits is 243, while the sum is 16.

The square root of 30133033 is about 5489.3563374953. The cubic root of 30133033 is about 311.1818672070.

Adding to 30133033 its reverse (33033103), we get a palindrome (63166136).

The spelling of 30133033 in words is "thirty million, one hundred thirty-three thousand, thirty-three".

Divisors: 1 7 4304719 30133033