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3031440223 = 72321719231
BaseRepresentation
bin1011010010110000…
…0001101101011111
321211021012010012211
42310230001231133
522202022041343
61220450141251
7135056550100
oct26454015537
97737163184
103031440223
1113161949a9
12707281827
13394071c16
1420a86c3a7
1512b20479d
hexb4b01b5f

3031440223 has 12 divisors (see below), whose sum is σ = 3527648832. Its totient is φ = 2597434560.

The previous prime is 3031440193. The next prime is 3031440241. The reversal of 3031440223 is 3220441303.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2k-3031440223 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3031440194 and 3031440203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3031441223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 148018 + ... + 167248.

It is an arithmetic number, because the mean of its divisors is an integer number (293970736).

Almost surely, 23031440223 is an apocalyptic number.

3031440223 is a deficient number, since it is larger than the sum of its proper divisors (496208609).

3031440223 is a wasteful number, since it uses less digits than its factorization.

3031440223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22462 (or 22455 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 3031440223 is about 55058.5163530584. The cubic root of 3031440223 is about 1447.2703657407.

Adding to 3031440223 its reverse (3220441303), we get a palindrome (6251881526).

The spelling of 3031440223 in words is "three billion, thirty-one million, four hundred forty thousand, two hundred twenty-three".

Divisors: 1 7 49 3217 19231 22519 134617 157633 942319 61866127 433062889 3031440223