Search a number
-
+
4001223 = 31333741
BaseRepresentation
bin1111010000110111000111
321112021122110
433100313013
52011014343
6221432103
746003242
oct17206707
97467573
104001223
1122931a6
12140b633
13aa12b5
14762259
15540833
hex3d0dc7

4001223 has 4 divisors (see below), whose sum is σ = 5334968. Its totient is φ = 2667480.

The previous prime is 4001219. The next prime is 4001227. The reversal of 4001223 is 3221004.

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

It is an interprime number because it is at equal distance from previous prime (4001219) and next prime (4001227).

It is not a de Polignac number, because 4001223 - 22 = 4001219 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 = 4001199 and 4001208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4001227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 666868 + ... + 666873.

It is an arithmetic number, because the mean of its divisors is an integer number (1333742).

Almost surely, 24001223 is an apocalyptic number.

4001223 is a deficient number, since it is larger than the sum of its proper divisors (1333745).

4001223 is a wasteful number, since it uses less digits than its factorization.

4001223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1333744.

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 4001223 is about 2000.3057266328. The cubic root of 4001223 is about 158.7562818107.

Adding to 4001223 its reverse (3221004), we get a palindrome (7222227).

It can be divided in two parts, 4001 and 223, that added together give a palindrome (4224).

The spelling of 4001223 in words is "four million, one thousand, two hundred twenty-three".

Divisors: 1 3 1333741 4001223