Search a number
2003223 = 3667741
BaseRepresentation
bin111101001000100010111
310202202220110
413221010113
51003100343
6110534103
723012205
oct7510427
93682813
102003223
111149062
12807333
13551a51
143a2075
15298833
hex1e9117

2003223 has 4 divisors (see below), whose sum is σ = 2670968. Its totient is φ = 1335480.

The previous prime is 2003213. The next prime is 2003237. The reversal of 2003223 is 3223002.

Adding to 2003223 its reverse (3223002), we get a palindrome (5226225).

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2003223 - 25 = 2003191 is a prime.

It is a D-number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2003199 and 2003208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2003213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 333868 + ... + 333873.

It is an arithmetic number, because the mean of its divisors is an integer number (667742).

22003223 is an apocalyptic number.

2003223 is a deficient number, since it is larger than the sum of its proper divisors (667745).

2003223 is an equidigital number, since it uses as much as digits as its factorization.

2003223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 667744.

The product of its (nonzero) digits is 72, while the sum is 12.

The square root of 2003223 is about 1415.3526062434. The cubic root of 2003223 is about 126.0597474263.

The spelling of 2003223 in words is "two million, three thousand, two hundred twenty-three".

Divisors: 1 3 667741 2003223