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30034045 = 56006809
BaseRepresentation
bin111001010010…
…0100001111101
32002111212222001
41302210201331
530142042140
62551422301
7513166546
oct162444175
962455861
1030034045
1115a54028
12a084991
1362b7632
143dbb4cd
152983e9a
hex1ca487d

30034045 has 4 divisors (see below), whose sum is σ = 36040860. Its totient is φ = 24027232.

The previous prime is 30034031. The next prime is 30034057. The reversal of 30034045 is 54043003.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54043003 = 77720429.

It can be written as a sum of positive squares in 2 ways, for example, as 18818244 + 11215801 = 4338^2 + 3349^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-30034045 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3003400 + ... + 3003409.

It is an arithmetic number, because the mean of its divisors is an integer number (9010215).

Almost surely, 230034045 is an apocalyptic number.

It is an amenable number.

30034045 is a deficient number, since it is larger than the sum of its proper divisors (6006815).

30034045 is an equidigital number, since it uses as much as digits as its factorization.

30034045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6006814.

The product of its (nonzero) digits is 720, while the sum is 19.

The square root of 30034045 is about 5480.3325629016. The cubic root of 30034045 is about 310.8407458615.

Adding to 30034045 its reverse (54043003), we get a palindrome (84077048).

The spelling of 30034045 in words is "thirty million, thirty-four thousand, forty-five".

Divisors: 1 5 6006809 30034045