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30130711 = 132317747
BaseRepresentation
bin111001011110…
…0001000010111
32002200210120021
41302330020113
530203140321
62553450011
7514051432
oct162741027
962623507
1030130711
111600a716
12a110907
13631c630
144004819
1529a2941
hex1cbc217

30130711 has 4 divisors (see below), whose sum is σ = 32448472. Its totient is φ = 27812952.

The previous prime is 30130703. The next prime is 30130717. The reversal of 30130711 is 11703103.

It is a happy number.

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 30130711 - 23 = 30130703 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 (30130717) by changing a digit.

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, 1158861 + ... + 1158886.

It is an arithmetic number, because the mean of its divisors is an integer number (8112118).

Almost surely, 230130711 is an apocalyptic number.

30130711 is a deficient number, since it is larger than the sum of its proper divisors (2317761).

30130711 is a wasteful number, since it uses less digits than its factorization.

30130711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2317760.

The product of its (nonzero) digits is 63, while the sum is 16.

The square root of 30130711 is about 5489.1448332140. The cubic root of 30130711 is about 311.1738739541.

Adding to 30130711 its reverse (11703103), we get a palindrome (41833814).

The spelling of 30130711 in words is "thirty million, one hundred thirty thousand, seven hundred eleven".

Divisors: 1 13 2317747 30130711