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30322393 = 127238759
BaseRepresentation
bin111001110101…
…0111011011001
32010001112111121
41303222323121
530230304033
63001525241
7515510323
oct163527331
963045447
1030322393
1116130732
12a1a3821
13638895a
144054613
1529de62d
hex1ceaed9

30322393 has 4 divisors (see below), whose sum is σ = 30561280. Its totient is φ = 30083508.

The previous prime is 30322381. The next prime is 30322403. The reversal of 30322393 is 39322303.

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 30322393 - 217 = 30191321 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30322343) 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, 119253 + ... + 119506.

It is an arithmetic number, because the mean of its divisors is an integer number (7640320).

Almost surely, 230322393 is an apocalyptic number.

It is an amenable number.

30322393 is a deficient number, since it is larger than the sum of its proper divisors (238887).

30322393 is a wasteful number, since it uses less digits than its factorization.

30322393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238886.

The product of its (nonzero) digits is 2916, while the sum is 25.

The square root of 30322393 is about 5506.5772490722. The cubic root of 30322393 is about 311.8323426703.

Adding to 30322393 its reverse (39322303), we get a palindrome (69644696).

The spelling of 30322393 in words is "thirty million, three hundred twenty-two thousand, three hundred ninety-three".

Divisors: 1 127 238759 30322393