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30020041 is a prime number
BaseRepresentation
bin111001010000…
…1000111001001
32002111011202101
41302201013021
530141120131
62551233401
7513110662
oct162410711
962434671
1030020041
1115a44557
12a078861
1362b114c
143db6369
15297ec61
hex1ca11c9

30020041 has 2 divisors, whose sum is σ = 30020042. Its totient is φ = 30020040.

The previous prime is 30019963. The next prime is 30020047. The reversal of 30020041 is 14002003.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20385225 + 9634816 = 4515^2 + 3104^2 .

It is an emirp because it is prime and its reverse (14002003) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30020041 - 29 = 30019529 is a prime.

It is not a weakly prime, because it can be changed into another prime (30020047) 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, 15010020 + 15010021.

It is an arithmetic number, because the mean of its divisors is an integer number (15010021).

Almost surely, 230020041 is an apocalyptic number.

It is an amenable number.

30020041 is a deficient number, since it is larger than the sum of its proper divisors (1).

30020041 is an equidigital number, since it uses as much as digits as its factorization.

30020041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 30020041 is about 5479.0547542437. The cubic root of 30020041 is about 310.7924263567.

Adding to 30020041 its reverse (14002003), we get a palindrome (44022044).

The spelling of 30020041 in words is "thirty million, twenty thousand, forty-one".