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6428233 = 7918319
BaseRepresentation
bin11000100001011001001001
3110002120212201
4120201121021
53121200413
6345440201
7105432130
oct30413111
913076781
106428233
1136a0699
1221a0061
131440bb6
14bd4917
1586e9dd
hex621649

6428233 has 4 divisors (see below), whose sum is σ = 7346560. Its totient is φ = 5509908.

The previous prime is 6428207. The next prime is 6428263. The reversal of 6428233 is 3328246.

6428233 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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: 3328246 = 21664123.

It is a cyclic number.

It is not a de Polignac number, because 6428233 - 29 = 6427721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6428263) 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, 459153 + ... + 459166.

It is an arithmetic number, because the mean of its divisors is an integer number (1836640).

Almost surely, 26428233 is an apocalyptic number.

It is an amenable number.

6428233 is a deficient number, since it is larger than the sum of its proper divisors (918327).

6428233 is an equidigital number, since it uses as much as digits as its factorization.

6428233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 918326.

The product of its digits is 6912, while the sum is 28.

The square root of 6428233 is about 2535.3960242929. The cubic root of 6428233 is about 185.9361653224.

The spelling of 6428233 in words is "six million, four hundred twenty-eight thousand, two hundred thirty-three".

Divisors: 1 7 918319 6428233