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1020223 is a prime number
BaseRepresentation
bin11111001000100111111
31220211111001
43321010333
5230121343
633511131
711446261
oct3710477
91824431
101020223
11637566
124124a7
132994a9
141c7b31
1515244d
hexf913f

1020223 has 2 divisors, whose sum is σ = 1020224. Its totient is φ = 1020222.

The previous prime is 1020163. The next prime is 1020233. The reversal of 1020223 is 3220201.

It is an a-pointer prime, because the next prime (1020233) can be obtained adding 1020223 to its sum of digits (10).

It is a strong prime.

It is an emirp because it is prime and its reverse (3220201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1020223 - 213 = 1012031 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1020233) 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, 510111 + 510112.

It is an arithmetic number, because the mean of its divisors is an integer number (510112).

21020223 is an apocalyptic number.

1020223 is a deficient number, since it is larger than the sum of its proper divisors (1).

1020223 is an equidigital number, since it uses as much as digits as its factorization.

1020223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 1020223 is about 1010.0608892537. The cubic root of 1020223 is about 100.6696062667.

Adding to 1020223 its reverse (3220201), we get a palindrome (4240424).

The spelling of 1020223 in words is "one million, twenty thousand, two hundred twenty-three".