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2808280897 is a prime number
BaseRepresentation
bin1010011101100010…
…1111011101000001
321020201021110011121
42213120233131001
521222404442042
61142355112241
7126406664602
oct24730573501
97221243147
102808280897
111211224004
126645a2681
13359a69496
141c8d7bda9
15116823367
hexa762f741

2808280897 has 2 divisors, whose sum is σ = 2808280898. Its totient is φ = 2808280896.

The previous prime is 2808280877. The next prime is 2808280903. The reversal of 2808280897 is 7980828082.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2804655681 + 3625216 = 52959^2 + 1904^2 .

It is a cyclic number.

It is not a de Polignac number, because 2808280897 - 227 = 2674063169 is a prime.

It is not a weakly prime, because it can be changed into another prime (2808280817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1404140448 + 1404140449.

It is an arithmetic number, because the mean of its divisors is an integer number (1404140449).

Almost surely, 22808280897 is an apocalyptic number.

It is an amenable number.

2808280897 is a deficient number, since it is larger than the sum of its proper divisors (1).

2808280897 is an equidigital number, since it uses as much as digits as its factorization.

2808280897 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1032192, while the sum is 52.

The square root of 2808280897 is about 52993.2155752036. The cubic root of 2808280897 is about 1410.8478540026.

The spelling of 2808280897 in words is "two billion, eight hundred eight million, two hundred eighty thousand, eight hundred ninety-seven".