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8055819 = 322338917
BaseRepresentation
bin11110101110110000001011
3120011021111200
4132232300023
54030241234
6444355243
7125321232
oct36566013
916137450
108055819
114602502
122845b23
131890975
1410d9b19
15a91d99
hex7aec0b

8055819 has 12 divisors (see below), whose sum is σ = 12142416. Its totient is φ = 5136912.

The previous prime is 8055811. The next prime is 8055851. The reversal of 8055819 is 9185508.

It is not a de Polignac number, because 8055819 - 23 = 8055811 is a prime.

It is a super-2 number, since 2×80558192 = 129792439521522, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

8055819 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8055811) 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 in 11 ways as a sum of consecutive naturals, for example, 19252 + ... + 19665.

It is an arithmetic number, because the mean of its divisors is an integer number (1011868).

Almost surely, 28055819 is an apocalyptic number.

8055819 is a deficient number, since it is larger than the sum of its proper divisors (4086597).

8055819 is a wasteful number, since it uses less digits than its factorization.

8055819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38946 (or 38943 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 36.

The square root of 8055819 is about 2838.2774705796. The cubic root of 8055819 is about 200.4640806462.

The spelling of 8055819 in words is "eight million, fifty-five thousand, eight hundred nineteen".

Divisors: 1 3 9 23 69 207 38917 116751 350253 895091 2685273 8055819