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7920233 is a prime number
BaseRepresentation
bin11110001101101001101001
3112220101111222
4132031221221
54011421413
6441431425
7124215026
oct36155151
915811458
107920233
11451a652
12279b575
131844039
1410a254d
15a66b08
hex78da69

7920233 has 2 divisors, whose sum is σ = 7920234. Its totient is φ = 7920232.

The previous prime is 7920229. The next prime is 7920251. The reversal of 7920233 is 3320297.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6692569 + 1227664 = 2587^2 + 1108^2 .

It is a cyclic number.

It is not a de Polignac number, because 7920233 - 22 = 7920229 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (7920203) 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, 3960116 + 3960117.

It is an arithmetic number, because the mean of its divisors is an integer number (3960117).

Almost surely, 27920233 is an apocalyptic number.

It is an amenable number.

7920233 is a deficient number, since it is larger than the sum of its proper divisors (1).

7920233 is an equidigital number, since it uses as much as digits as its factorization.

7920233 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2268, while the sum is 26.

The square root of 7920233 is about 2814.2908520620. The cubic root of 7920233 is about 199.3330533833. Note that the first 3 decimals are identical.

The spelling of 7920233 in words is "seven million, nine hundred twenty thousand, two hundred thirty-three".