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30320413 = 43969067
BaseRepresentation
bin111001110101…
…0011100011101
32010001102210021
41303222130131
530230223123
63001512141
7515501464
oct163523435
963042707
1030320413
111612a1a2
12a1a2651
136387a96
1440539db
1529ddc5d
hex1cea71d

30320413 has 4 divisors (see below), whose sum is σ = 30389920. Its totient is φ = 30250908.

The previous prime is 30320393. The next prime is 30320453. The reversal of 30320413 is 31402303.

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.

It is a cyclic number.

It is not a de Polignac number, because 30320413 - 29 = 30319901 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 (30320453) 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, 34095 + ... + 34972.

It is an arithmetic number, because the mean of its divisors is an integer number (7597480).

Almost surely, 230320413 is an apocalyptic number.

It is an amenable number.

30320413 is a deficient number, since it is larger than the sum of its proper divisors (69507).

30320413 is an equidigital number, since it uses as much as digits as its factorization.

30320413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69506.

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 30320413 is about 5506.3974611355. The cubic root of 30320413 is about 311.8255551511.

Adding to 30320413 its reverse (31402303), we get a palindrome (61722716).

The spelling of 30320413 in words is "thirty million, three hundred twenty thousand, four hundred thirteen".

Divisors: 1 439 69067 30320413