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2825819 is a prime number
BaseRepresentation
bin1010110001111001011011
312022120021222
422301321123
51210411234
6140322255
733006353
oct12617133
95276258
102825819
111660097
12b4338b
1377c2a9
14537b63
153ac42e
hex2b1e5b

2825819 has 2 divisors, whose sum is σ = 2825820. Its totient is φ = 2825818.

The previous prime is 2825783. The next prime is 2825821. The reversal of 2825819 is 9185282.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2825819 - 216 = 2760283 is a prime.

It is a super-2 number, since 2×28258192 = 15970506041522, which contains 22 as substring.

Together with 2825821, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2825869) 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, 1412909 + 1412910.

It is an arithmetic number, because the mean of its divisors is an integer number (1412910).

22825819 is an apocalyptic number.

2825819 is a deficient number, since it is larger than the sum of its proper divisors (1).

2825819 is an equidigital number, since it uses as much as digits as its factorization.

2825819 is an odious number, because the sum of its binary digits is odd.

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

The square root of 2825819 is about 1681.0172515474. The cubic root of 2825819 is about 141.3778741237.

The spelling of 2825819 in words is "two million, eight hundred twenty-five thousand, eight hundred nineteen".