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30230873 is a prime number
BaseRepresentation
bin111001101010…
…0100101011001
32002212212221222
41303110211121
530214341443
62555541425
7514646441
oct163244531
962785858
1030230873
11160789a2
12a15a875
1363560ba
14402d121
1529c2468
hex1cd4959

30230873 has 2 divisors, whose sum is σ = 30230874. Its totient is φ = 30230872.

The previous prime is 30230839. The next prime is 30230911. The reversal of 30230873 is 37803203.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27175369 + 3055504 = 5213^2 + 1748^2 .

It is an emirp because it is prime and its reverse (37803203) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30230873 - 220 = 29182297 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (30233873) 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, 15115436 + 15115437.

It is an arithmetic number, because the mean of its divisors is an integer number (15115437).

Almost surely, 230230873 is an apocalyptic number.

It is an amenable number.

30230873 is a deficient number, since it is larger than the sum of its proper divisors (1).

30230873 is an equidigital number, since it uses as much as digits as its factorization.

30230873 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 26.

The square root of 30230873 is about 5498.2609068686. The cubic root of 30230873 is about 311.5182991121.

The spelling of 30230873 in words is "thirty million, two hundred thirty thousand, eight hundred seventy-three".