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8223013 is a prime number
BaseRepresentation
bin11111010111100100100101
3120110202212001
4133113210211
54101114023
6452125301
7126615541
oct37274445
916422761
108223013
114707087
122906831
13191bab6
141140a21
15ac66ad
hex7d7925

8223013 has 2 divisors, whose sum is σ = 8223014. Its totient is φ = 8223012.

The previous prime is 8222999. The next prime is 8223043. The reversal of 8223013 is 3103228.

It is a happy number.

8223013 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 can be written as a sum of positive squares in only one way, i.e., 8196769 + 26244 = 2863^2 + 162^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-8223013 is a prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8223043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4111506 + 4111507.

It is an arithmetic number, because the mean of its divisors is an integer number (4111507).

Almost surely, 28223013 is an apocalyptic number.

It is an amenable number.

8223013 is a deficient number, since it is larger than the sum of its proper divisors (1).

8223013 is an equidigital number, since it uses as much as digits as its factorization.

8223013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 8223013 is about 2867.5796414398. The cubic root of 8223013 is about 201.8414352143.

The spelling of 8223013 in words is "eight million, two hundred twenty-three thousand, thirteen".