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8218220323 is a prime number
BaseRepresentation
bin1111010011101100…
…00001011100100011
3210012202000211220111
413221312001130203
5113312331022243
63435252552151
7410440502005
oct75166013443
923182024814
108218220323
113537a75625
121714322657
13a0c809781
1457d670375
1533175339d
hex1e9d81723

8218220323 has 2 divisors, whose sum is σ = 8218220324. Its totient is φ = 8218220322.

The previous prime is 8218220299. The next prime is 8218220363. The reversal of 8218220323 is 3230228128.

8218220323 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8218220323 - 217 = 8218089251 is a prime.

It is not a weakly prime, because it can be changed into another prime (8218220363) 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 as a sum of consecutive naturals, namely, 4109110161 + 4109110162.

It is an arithmetic number, because the mean of its divisors is an integer number (4109110162).

Almost surely, 28218220323 is an apocalyptic number.

8218220323 is a deficient number, since it is larger than the sum of its proper divisors (1).

8218220323 is an equidigital number, since it uses as much as digits as its factorization.

8218220323 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 8218220323 is about 90654.4004613124. The cubic root of 8218220323 is about 2018.0221403497.

The spelling of 8218220323 in words is "eight billion, two hundred eighteen million, two hundred twenty thousand, three hundred twenty-three".