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30228833 is a prime number
BaseRepresentation
bin111001101010…
…0000101100001
32002212210011102
41303110011201
530214310313
62555524145
7514640465
oct163240541
962783142
1030228833
1116077408
12a159655
1363551ab
14402c4a5
1529c1a58
hex1cd4161

30228833 has 2 divisors, whose sum is σ = 30228834. Its totient is φ = 30228832.

The previous prime is 30228823. The next prime is 30228851. The reversal of 30228833 is 33882203.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22202944 + 8025889 = 4712^2 + 2833^2 .

It is a cyclic number.

It is not a de Polignac number, because 30228833 - 26 = 30228769 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30228796 and 30228805.

It is not a weakly prime, because it can be changed into another prime (30228823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15114416 + 15114417.

It is an arithmetic number, because the mean of its divisors is an integer number (15114417).

Almost surely, 230228833 is an apocalyptic number.

It is an amenable number.

30228833 is a deficient number, since it is larger than the sum of its proper divisors (1).

30228833 is an equidigital number, since it uses as much as digits as its factorization.

30228833 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 30228833 is about 5498.0753905344. The cubic root of 30228833 is about 311.5112917985.

The spelling of 30228833 in words is "thirty million, two hundred twenty-eight thousand, eight hundred thirty-three".