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30130103 = 171772359
BaseRepresentation
bin111001011101…
…1111110110111
32002200202201202
41302323332313
530203130403
62553443115
7514046603
oct162737667
962622652
1030130103
111600a213
12a11049b
13631c283
144004503
1529a2688
hex1cbbfb7

30130103 has 4 divisors (see below), whose sum is σ = 31902480. Its totient is φ = 28357728.

The previous prime is 30130097. The next prime is 30130117. The reversal of 30130103 is 30103103.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 30130103 - 214 = 30113719 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30130183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 886163 + ... + 886196.

It is an arithmetic number, because the mean of its divisors is an integer number (7975620).

Almost surely, 230130103 is an apocalyptic number.

30130103 is a deficient number, since it is larger than the sum of its proper divisors (1772377).

30130103 is a wasteful number, since it uses less digits than its factorization.

30130103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1772376.

The product of its (nonzero) digits is 27, while the sum is 11.

The square root of 30130103 is about 5489.0894509017. The cubic root of 30130103 is about 311.1717809071.

Adding to 30130103 its reverse (30103103), we get a palindrome (60233206).

Subtracting from 30130103 its reverse (30103103), we obtain a cube (27000 = 303).

The spelling of 30130103 in words is "thirty million, one hundred thirty thousand, one hundred three".

Divisors: 1 17 1772359 30130103