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2243304143 = 7131595833
BaseRepresentation
bin1000010110110110…
…0001101011001111
312210100011122202122
42011231201223033
514043241213033
61010333443155
7106406525213
oct20555415317
95710148678
102243304143
11a51317673
125273404bb
132999b4102
14173d10943
15d1e22a98
hex85b61acf

2243304143 has 4 divisors (see below), whose sum is σ = 2274900048. Its totient is φ = 2211708240.

The previous prime is 2243304131. The next prime is 2243304157. The reversal of 2243304143 is 3414033422.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3414033422 = 21707016711.

It is a cyclic number.

It is not a de Polignac number, because 2243304143 - 26 = 2243304079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2243334143) 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 3 ways as a sum of consecutive naturals, for example, 15797846 + ... + 15797987.

It is an arithmetic number, because the mean of its divisors is an integer number (568725012).

Almost surely, 22243304143 is an apocalyptic number.

2243304143 is a deficient number, since it is larger than the sum of its proper divisors (31595905).

2243304143 is an equidigital number, since it uses as much as digits as its factorization.

2243304143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31595904.

The product of its (nonzero) digits is 6912, while the sum is 26.

The square root of 2243304143 is about 47363.5317834302. The cubic root of 2243304143 is about 1309.0695455638.

Adding to 2243304143 its reverse (3414033422), we get a palindrome (5657337565).

The spelling of 2243304143 in words is "two billion, two hundred forty-three million, three hundred four thousand, one hundred forty-three".

Divisors: 1 71 31595833 2243304143