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280055052757 is a prime number
BaseRepresentation
bin1000001001101001001…
…01001111100111010101
3222202212111222201200101
410010310211033213111
514042023043142012
6332353331414101
726143011446164
oct4046445174725
9882774881611
10280055052757
11a885285a227
1246339a54331
132054198b18c
14d7aa2ab3db
1574416b9d57
hex413494f9d5

280055052757 has 2 divisors, whose sum is σ = 280055052758. Its totient is φ = 280055052756.

The previous prime is 280055052751. The next prime is 280055052803. The reversal of 280055052757 is 757250550082.

It is an a-pointer prime, because the next prime (280055052803) can be obtained adding 280055052757 to its sum of digits (46).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 210565347876 + 69489704881 = 458874^2 + 263609^2 .

It is a cyclic number.

It is not a de Polignac number, because 280055052757 - 23 = 280055052749 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (280055052751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 140027526378 + 140027526379.

It is an arithmetic number, because the mean of its divisors is an integer number (140027526379).

Almost surely, 2280055052757 is an apocalyptic number.

It is an amenable number.

280055052757 is a deficient number, since it is larger than the sum of its proper divisors (1).

280055052757 is an equidigital number, since it uses as much as digits as its factorization.

280055052757 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 980000, while the sum is 46.

The spelling of 280055052757 in words is "two hundred eighty billion, fifty-five million, fifty-two thousand, seven hundred fifty-seven".