Search a number
-
+
12028019 is a prime number
BaseRepresentation
bin101101111000…
…100001110011
3211122002100012
4231320201303
511034344034
61105445135
7204144053
oct55704163
924562305
1012028019
116875913
1240407ab
132651993
141851563
1510c8cce
hexb78873

12028019 has 2 divisors, whose sum is σ = 12028020. Its totient is φ = 12028018.

The previous prime is 12028013. The next prime is 12028021. The reversal of 12028019 is 91082021.

12028019 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is an emirp because it is prime and its reverse (91082021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12028019 - 212 = 12023923 is a prime.

It is a super-2 number, since 2×120280192 = 289346482128722, which contains 22 as substring.

Together with 12028021, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 12027985 and 12028003.

It is not a weakly prime, because it can be changed into another prime (12028013) 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, 6014009 + 6014010.

It is an arithmetic number, because the mean of its divisors is an integer number (6014010).

Almost surely, 212028019 is an apocalyptic number.

12028019 is a deficient number, since it is larger than the sum of its proper divisors (1).

12028019 is an equidigital number, since it uses as much as digits as its factorization.

12028019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 23.

The square root of 12028019 is about 3468.1434514737. The cubic root of 12028019 is about 229.1208974969.

The spelling of 12028019 in words is "twelve million, twenty-eight thousand, nineteen".