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30130383 = 310043461
BaseRepresentation
bin111001011110…
…0000011001111
32002200210010010
41302330003033
530203133013
62553444303
7514050453
oct162740317
962623103
1030130383
111600a448
12a110693
13631c43a
144004663
1529a27c3
hex1cbc0cf

30130383 has 4 divisors (see below), whose sum is σ = 40173848. Its totient is φ = 20086920.

The previous prime is 30130381. The next prime is 30130403. The reversal of 30130383 is 38303103.

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

It is not a de Polignac number, because 30130383 - 21 = 30130381 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 (30130381) 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, 5021728 + ... + 5021733.

It is an arithmetic number, because the mean of its divisors is an integer number (10043462).

Almost surely, 230130383 is an apocalyptic number.

30130383 is a deficient number, since it is larger than the sum of its proper divisors (10043465).

30130383 is a wasteful number, since it uses less digits than its factorization.

30130383 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10043464.

The product of its (nonzero) digits is 648, while the sum is 21.

The square root of 30130383 is about 5489.1149559833. The cubic root of 30130383 is about 311.1727448138.

Adding to 30130383 its reverse (38303103), we get a palindrome (68433486).

The spelling of 30130383 in words is "thirty million, one hundred thirty thousand, three hundred eighty-three".

Divisors: 1 3 10043461 30130383