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30006019 is a prime number
BaseRepresentation
bin111001001110…
…1101100000011
32002110110112001
41302131230003
530140143034
62551044431
7513022051
oct162355403
962413461
1030006019
1115a34a6a
12a070717
1362a7954
143db11d1
15297aa14
hex1c9db03

30006019 has 2 divisors, whose sum is σ = 30006020. Its totient is φ = 30006018.

The previous prime is 30006013. The next prime is 30006049. The reversal of 30006019 is 91060003.

It is a weak prime.

It is an emirp because it is prime and its reverse (91060003) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30006019 - 211 = 30003971 is a prime.

It is a super-2 number, since 2×300060192 = 1800722352456722, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 30005987 and 30006005.

It is not a weakly prime, because it can be changed into another prime (30006013) 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, 15003009 + 15003010.

It is an arithmetic number, because the mean of its divisors is an integer number (15003010).

Almost surely, 230006019 is an apocalyptic number.

30006019 is a deficient number, since it is larger than the sum of its proper divisors (1).

30006019 is an equidigital number, since it uses as much as digits as its factorization.

30006019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 162, while the sum is 19.

The square root of 30006019 is about 5477.7750045068. The cubic root of 30006019 is about 310.7440296863.

The spelling of 30006019 in words is "thirty million, six thousand, nineteen".