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2012881841 is a prime number
BaseRepresentation
bin111011111111010…
…0010001110110001
312012021120222210022
41313332202032301
513110244204331
6531423013225
7100611133115
oct16776421661
95167528708
102012881841
11943245a13
1248213a215
13261037859
1415148d745
15bbaa967b
hex77fa23b1

2012881841 has 2 divisors, whose sum is σ = 2012881842. Its totient is φ = 2012881840.

The previous prime is 2012881811. The next prime is 2012881847. The reversal of 2012881841 is 1481882102.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1537816225 + 475065616 = 39215^2 + 21796^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2012881841 is a prime.

It is not a weakly prime, because it can be changed into another prime (2012881847) 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, 1006440920 + 1006440921.

It is an arithmetic number, because the mean of its divisors is an integer number (1006440921).

Almost surely, 22012881841 is an apocalyptic number.

It is an amenable number.

2012881841 is a deficient number, since it is larger than the sum of its proper divisors (1).

2012881841 is an equidigital number, since it uses as much as digits as its factorization.

2012881841 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8192, while the sum is 35.

The square root of 2012881841 is about 44865.1517438646. The cubic root of 2012881841 is about 1262.6202800935.

The spelling of 2012881841 in words is "two billion, twelve million, eight hundred eighty-one thousand, eight hundred forty-one".