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2808020953 is a prime number
BaseRepresentation
bin1010011101011110…
…1111111111011001
321020200210020121001
42213113233333121
521222323132303
61142345345001
7126404533003
oct24727577731
97220706531
102808020953
111211066781
12664498161
133599a807a
141c8d11373
151167c131d
hexa75effd9

2808020953 has 2 divisors, whose sum is σ = 2808020954. Its totient is φ = 2808020952.

The previous prime is 2808020923. The next prime is 2808020977. The reversal of 2808020953 is 3590208082.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1929669184 + 878351769 = 43928^2 + 29637^2 .

It is a cyclic number.

It is not a de Polignac number, because 2808020953 - 25 = 2808020921 is a prime.

It is not a weakly prime, because it can be changed into another prime (2808020923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1404010476 + 1404010477.

It is an arithmetic number, because the mean of its divisors is an integer number (1404010477).

Almost surely, 22808020953 is an apocalyptic number.

It is an amenable number.

2808020953 is a deficient number, since it is larger than the sum of its proper divisors (1).

2808020953 is an equidigital number, since it uses as much as digits as its factorization.

2808020953 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 2808020953 is about 52990.7629026041. The cubic root of 2808020953 is about 1410.8043217060.

The spelling of 2808020953 in words is "two billion, eight hundred eight million, twenty thousand, nine hundred fifty-three".