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2218280143 is a prime number
BaseRepresentation
bin1000010000111000…
…0100010011001111
312201121002022021211
42010032010103033
514020334431033
61004041235251
7105654033022
oct20416042317
95647068254
102218280143
11a39185782
1251aa92b27
13294762001
141708791b9
15ceb2d2cd
hex843844cf

2218280143 has 2 divisors, whose sum is σ = 2218280144. Its totient is φ = 2218280142.

The previous prime is 2218280137. The next prime is 2218280159. The reversal of 2218280143 is 3410828122.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2218280143 - 25 = 2218280111 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2218280123) 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 as a sum of consecutive naturals, namely, 1109140071 + 1109140072.

It is an arithmetic number, because the mean of its divisors is an integer number (1109140072).

Almost surely, 22218280143 is an apocalyptic number.

2218280143 is a deficient number, since it is larger than the sum of its proper divisors (1).

2218280143 is an equidigital number, since it uses as much as digits as its factorization.

2218280143 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6144, while the sum is 31.

The square root of 2218280143 is about 47098.6214554099. The cubic root of 2218280143 is about 1304.1837877426.

The spelling of 2218280143 in words is "two billion, two hundred eighteen million, two hundred eighty thousand, one hundred forty-three".