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2855000881 is a prime number
BaseRepresentation
bin1010101000101011…
…1101101100110001
321100222012001221101
42222022331230301
521321340012011
61151144324401
7130515051505
oct25212755461
97328161841
102855000881
111235634467
12678173701
13366646945
141d1260305
1511a9a12c1
hexaa2bdb31

2855000881 has 2 divisors, whose sum is σ = 2855000882. Its totient is φ = 2855000880.

The previous prime is 2855000843. The next prime is 2855000891. The reversal of 2855000881 is 1880005582.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1614834225 + 1240166656 = 40185^2 + 35216^2 .

It is a cyclic number.

It is not a de Polignac number, because 2855000881 - 211 = 2854998833 is a prime.

It is a super-2 number, since 2×28550008812 = 16302060061021552322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2855000881.

It is not a weakly prime, because it can be changed into another prime (2855000821) 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, 1427500440 + 1427500441.

It is an arithmetic number, because the mean of its divisors is an integer number (1427500441).

Almost surely, 22855000881 is an apocalyptic number.

It is an amenable number.

2855000881 is a deficient number, since it is larger than the sum of its proper divisors (1).

2855000881 is an equidigital number, since it uses as much as digits as its factorization.

2855000881 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25600, while the sum is 37.

The square root of 2855000881 is about 53432.2082736621. The cubic root of 2855000881 is about 1418.6287233148.

The spelling of 2855000881 in words is "two billion, eight hundred fifty-five million, eight hundred eighty-one", and thus it is an aban number.