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30130763 = 132317751
BaseRepresentation
bin111001011110…
…0001001001011
32002200210122012
41302330021023
530203141023
62553450135
7514051535
oct162741113
962623565
1030130763
111600a763
12a11094b
13631c670
144004855
1529a2978
hex1cbc24b

30130763 has 4 divisors (see below), whose sum is σ = 32448528. Its totient is φ = 27813000.

The previous prime is 30130757. The next prime is 30130781. The reversal of 30130763 is 36703103.

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 30130763 - 210 = 30129739 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30130703) 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, 1158863 + ... + 1158888.

It is an arithmetic number, because the mean of its divisors is an integer number (8112132).

Almost surely, 230130763 is an apocalyptic number.

30130763 is a deficient number, since it is larger than the sum of its proper divisors (2317765).

30130763 is a wasteful number, since it uses less digits than its factorization.

30130763 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2317764.

The product of its (nonzero) digits is 1134, while the sum is 23.

The square root of 30130763 is about 5489.1495698332. The cubic root of 30130763 is about 311.1740529634.

Adding to 30130763 its reverse (36703103), we get a palindrome (66833866).

The spelling of 30130763 in words is "thirty million, one hundred thirty thousand, seven hundred sixty-three".

Divisors: 1 13 2317751 30130763