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30013233 = 310004411
BaseRepresentation
bin111001001111…
…1011100110001
32002110211102020
41302133130301
530140410413
62551142053
7513052065
oct162373461
962424366
1030013233
1115a3a428
12a074929
1362ab013
143db3aa5
15297cc23
hex1c9f731

30013233 has 4 divisors (see below), whose sum is σ = 40017648. Its totient is φ = 20008820.

The previous prime is 30013201. The next prime is 30013283. The reversal of 30013233 is 33231003.

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 30013233 - 25 = 30013201 is a prime.

It is a super-2 number, since 2×300132332 = 1801588310224578, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (30013283) 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, 5002203 + ... + 5002208.

It is an arithmetic number, because the mean of its divisors is an integer number (10004412).

Almost surely, 230013233 is an apocalyptic number.

It is an amenable number.

30013233 is a deficient number, since it is larger than the sum of its proper divisors (10004415).

30013233 is a wasteful number, since it uses less digits than its factorization.

30013233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10004414.

The product of its (nonzero) digits is 162, while the sum is 15.

The square root of 30013233 is about 5478.4334439692. The cubic root of 30013233 is about 310.7689305548.

Adding to 30013233 its reverse (33231003), we get a palindrome (63244236).

The spelling of 30013233 in words is "thirty million, thirteen thousand, two hundred thirty-three".

Divisors: 1 3 10004411 30013233