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2228233 = 7318319
BaseRepresentation
bin1000100000000000001001
311012012120011
420200000021
51032300413
6115431521
724640210
oct10400011
94165504
102228233
111292117
128b55a1
136002a7
14420077
152e033d
hex220009

2228233 has 4 divisors (see below), whose sum is σ = 2546560. Its totient is φ = 1909908.

The previous prime is 2228221. The next prime is 2228243. The reversal of 2228233 is 3328222.

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 not a de Polignac number, because 2228233 - 25 = 2228201 is a prime.

It is a Duffinian number.

2228233 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2228243) 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, 159153 + ... + 159166.

It is an arithmetic number, because the mean of its divisors is an integer number (636640).

22228233 is an apocalyptic number.

It is an amenable number.

2228233 is a deficient number, since it is larger than the sum of its proper divisors (318327).

2228233 is an equidigital number, since it uses as much as digits as its factorization.

2228233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318326.

The product of its digits is 1152, while the sum is 22.

The square root of 2228233 is about 1492.7266997009. The cubic root of 2228233 is about 130.6131391137.

It can be divided in two parts, 22 and 28233, that multiplied together give a palindrome (621126).

The spelling of 2228233 in words is "two million, two hundred twenty-eight thousand, two hundred thirty-three".

Divisors: 1 7 318319 2228233