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30320113 = 67452539
BaseRepresentation
bin111001110101…
…0010111110001
32010001102101011
41303222113301
530230220423
63001510521
7515500555
oct163522761
963042334
1030320113
1116129a4a
12a1a2441
1363878c5
144053865
1529ddb0d
hex1cea5f1

30320113 has 4 divisors (see below), whose sum is σ = 30772720. Its totient is φ = 29867508.

The previous prime is 30320083. The next prime is 30320137. The reversal of 30320113 is 31102303.

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: 31102303 = 122925307.

It is a cyclic number.

It is not a de Polignac number, because 30320113 - 213 = 30311921 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30320093 and 30320102.

It is not an unprimeable number, because it can be changed into a prime (30320183) 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, 226203 + ... + 226336.

It is an arithmetic number, because the mean of its divisors is an integer number (7693180).

Almost surely, 230320113 is an apocalyptic number.

It is an amenable number.

30320113 is a deficient number, since it is larger than the sum of its proper divisors (452607).

30320113 is an equidigital number, since it uses as much as digits as its factorization.

30320113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 452606.

The product of its (nonzero) digits is 54, while the sum is 13.

The square root of 30320113 is about 5506.3702200270. The cubic root of 30320113 is about 311.8245267133.

Adding to 30320113 its reverse (31102303), we get a palindrome (61422416).

The spelling of 30320113 in words is "thirty million, three hundred twenty thousand, one hundred thirteen".

Divisors: 1 67 452539 30320113