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2806469 is a prime number
BaseRepresentation
bin1010101101001011000101
312021120202022
422231023011
51204301334
6140052525
732566061
oct12551305
95246668
102806469
1116475a6
12b34145
13773543
14530aa1
153a682e
hex2ad2c5

2806469 has 2 divisors, whose sum is σ = 2806470. Its totient is φ = 2806468.

The previous prime is 2806459. The next prime is 2806493. The reversal of 2806469 is 9646082.

2806469 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2592100 + 214369 = 1610^2 + 463^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2806469 is a prime.

It is a super-2 number, since 2×28064692 = 15752536495922, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2806439) 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, 1403234 + 1403235.

It is an arithmetic number, because the mean of its divisors is an integer number (1403235).

22806469 is an apocalyptic number.

It is an amenable number.

2806469 is a deficient number, since it is larger than the sum of its proper divisors (1).

2806469 is an equidigital number, since it uses as much as digits as its factorization.

2806469 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 2806469 is about 1675.2519213539. The cubic root of 2806469 is about 141.0544363355.

The spelling of 2806469 in words is "two million, eight hundred six thousand, four hundred sixty-nine".