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2213443441 = 11218292921
BaseRepresentation
bin1000001111101110…
…0111011101110001
312201020222120120201
42003323213131301
514013120142231
61003345435201
7105564646606
oct20373473561
95636876521
102213443441
11a36481900
1251933bb01
1329375a661
1416dd7a6ad
15ce4c5161
hex83ee7771

2213443441 has 6 divisors (see below), whose sum is σ = 2432958626. Its totient is φ = 2012221200.

The previous prime is 2213443417. The next prime is 2213443451. The reversal of 2213443441 is 1443443122.

It can be written as a sum of positive squares in only one way, i.e., 1803785841 + 409657600 = 42471^2 + 20240^2 .

It is not a de Polignac number, because 2213443441 - 27 = 2213443313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2213443411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9146340 + ... + 9146581.

Almost surely, 22213443441 is an apocalyptic number.

It is an amenable number.

2213443441 is a deficient number, since it is larger than the sum of its proper divisors (219515185).

2213443441 is a wasteful number, since it uses less digits than its factorization.

2213443441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18292943 (or 18292932 counting only the distinct ones).

The product of its digits is 9216, while the sum is 28.

The square root of 2213443441 is about 47047.2469013863. The cubic root of 2213443441 is about 1303.2352242803.

Adding to 2213443441 its reverse (1443443122), we get a palindrome (3656886563).

It can be divided in two parts, 221344 and 3441, that added together give a triangular number (224785 = T670).

The spelling of 2213443441 in words is "two billion, two hundred thirteen million, four hundred forty-three thousand, four hundred forty-one".

Divisors: 1 11 121 18292921 201222131 2213443441