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30223441 is a prime number
BaseRepresentation
bin111001101001…
…0110001010001
32002212111202201
41303102301101
530214122231
62555443201
7514615663
oct163226121
962774681
1030223441
1116073356
12a156501
1363528c1
14402a533
1529c0161
hex1cd2c51

30223441 has 2 divisors, whose sum is σ = 30223442. Its totient is φ = 30223440.

The previous prime is 30223439. The next prime is 30223469. The reversal of 30223441 is 14432203.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29931841 + 291600 = 5471^2 + 540^2 .

It is an emirp because it is prime and its reverse (14432203) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30223441 - 21 = 30223439 is a prime.

Together with 30223439, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (30221441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15111720 + 15111721.

It is an arithmetic number, because the mean of its divisors is an integer number (15111721).

Almost surely, 230223441 is an apocalyptic number.

It is an amenable number.

30223441 is a deficient number, since it is larger than the sum of its proper divisors (1).

30223441 is an equidigital number, since it uses as much as digits as its factorization.

30223441 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 30223441 is about 5497.5850152590. The cubic root of 30223441 is about 311.4927689888.

Adding to 30223441 its reverse (14432203), we get a palindrome (44655644).

The spelling of 30223441 in words is "thirty million, two hundred twenty-three thousand, four hundred forty-one".