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30131713 = 59510707
BaseRepresentation
bin111001011110…
…0011000000001
32002200211221101
41302330120001
530203203323
62553454401
7514054363
oct162743001
962624841
1030131713
1116010447
12a111401
13631cc21
144004d33
1529a2dad
hex1cbc601

30131713 has 4 divisors (see below), whose sum is σ = 30642480. Its totient is φ = 29620948.

The previous prime is 30131711. The next prime is 30131779. The reversal of 30131713 is 31713103.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 31713103 = 89356327.

It is a cyclic number.

It is not a de Polignac number, because 30131713 - 21 = 30131711 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30131711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 255295 + ... + 255412.

It is an arithmetic number, because the mean of its divisors is an integer number (7660620).

Almost surely, 230131713 is an apocalyptic number.

It is an amenable number.

30131713 is a deficient number, since it is larger than the sum of its proper divisors (510767).

30131713 is an equidigital number, since it uses as much as digits as its factorization.

30131713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510766.

The product of its (nonzero) digits is 189, while the sum is 19.

The square root of 30131713 is about 5489.2361035029. The cubic root of 30131713 is about 311.1773232893.

Adding to 30131713 its reverse (31713103), we get a palindrome (61844816).

The spelling of 30131713 in words is "thirty million, one hundred thirty-one thousand, seven hundred thirteen".

Divisors: 1 59 510707 30131713