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83885141 is a prime number
BaseRepresentation
bin1001111111111…
…11110001010101
312211211210210002
410333333301111
5132433311031
612153541045
72036004044
oct477776125
9184753702
1083885141
114339516a
1224114785
13144c08a2
14b1d855b
15756eccb
hex4fffc55

83885141 has 2 divisors, whose sum is σ = 83885142. Its totient is φ = 83885140.

The previous prime is 83885119. The next prime is 83885143. The reversal of 83885141 is 14158838.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50822641 + 33062500 = 7129^2 + 5750^2 .

It is a cyclic number.

It is not a de Polignac number, because 83885141 - 26 = 83885077 is a prime.

It is a Sophie Germain prime.

Together with 83885143, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 83885095 and 83885104.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83885143) 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 as a sum of consecutive naturals, namely, 41942570 + 41942571.

It is an arithmetic number, because the mean of its divisors is an integer number (41942571).

Almost surely, 283885141 is an apocalyptic number.

It is an amenable number.

83885141 is a deficient number, since it is larger than the sum of its proper divisors (1).

83885141 is an equidigital number, since it uses as much as digits as its factorization.

83885141 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30720, while the sum is 38.

The square root of 83885141 is about 9158.8831742740. The cubic root of 83885141 is about 437.7522089738.

The spelling of 83885141 in words is "eighty-three million, eight hundred eighty-five thousand, one hundred forty-one".