Search a number
-
+
8045819 is a prime number
BaseRepresentation
bin11110101100010011111011
3120010202210022
4132230103323
54024431234
6444241055
7125250125
oct36542373
916122708
108045819
1145a5a41
12284018b
131889252
1410d6215
15a8de2e
hex7ac4fb

8045819 has 2 divisors, whose sum is σ = 8045820. Its totient is φ = 8045818.

The previous prime is 8045809. The next prime is 8045827. The reversal of 8045819 is 9185408.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8045819 - 212 = 8041723 is a prime.

It is a super-2 number, since 2×80458192 = 129470406761522, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (8045809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4022909 + 4022910.

It is an arithmetic number, because the mean of its divisors is an integer number (4022910).

Almost surely, 28045819 is an apocalyptic number.

8045819 is a deficient number, since it is larger than the sum of its proper divisors (1).

8045819 is an equidigital number, since it uses as much as digits as its factorization.

8045819 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11520, while the sum is 35.

The square root of 8045819 is about 2836.5152916916. The cubic root of 8045819 is about 200.3810983590.

The spelling of 8045819 in words is "eight million, forty-five thousand, eight hundred nineteen".