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30044013 = 310014671
BaseRepresentation
bin111001010011…
…0111101101101
32002112101122020
41302212331231
530142402023
62551540353
7513240606
oct162467555
962471566
1030044013
1115a6056a
12a08a6b9
1362bc02c
143dc0dad
152986de3
hex1ca6f6d

30044013 has 4 divisors (see below), whose sum is σ = 40058688. Its totient is φ = 20029340.

The previous prime is 30043999. The next prime is 30044033. The reversal of 30044013 is 31044003.

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 30044013 - 214 = 30027629 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30043983 and 30044001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30044033) 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, 5007333 + ... + 5007338.

It is an arithmetic number, because the mean of its divisors is an integer number (10014672).

Almost surely, 230044013 is an apocalyptic number.

It is an amenable number.

30044013 is a deficient number, since it is larger than the sum of its proper divisors (10014675).

30044013 is a wasteful number, since it uses less digits than its factorization.

30044013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10014674.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 30044013 is about 5481.2419213167. The cubic root of 30044013 is about 310.8751303723.

Adding to 30044013 its reverse (31044003), we get a palindrome (61088016).

The spelling of 30044013 in words is "thirty million, forty-four thousand, thirteen".

Divisors: 1 3 10014671 30044013