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3380762821 is a prime number
BaseRepresentation
bin1100100110000010…
…0101100011000101
322201121111112201211
43021200211203011
523410433402241
61315245251421
7146531003242
oct31140454305
98647445654
103380762821
111485397167
127a4263b71
1341b54b997
142410005c9
1514bc07781
hexc98258c5

3380762821 has 2 divisors, whose sum is σ = 3380762822. Its totient is φ = 3380762820.

The previous prime is 3380762809. The next prime is 3380762867. The reversal of 3380762821 is 1282670833.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2940350625 + 440412196 = 54225^2 + 20986^2 .

It is an emirp because it is prime and its reverse (1282670833) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3380762821 - 229 = 2843891909 is a prime.

It is a super-2 number, since 2×33807628212 = 22859114503711756082, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3380762881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1690381410 + 1690381411.

It is an arithmetic number, because the mean of its divisors is an integer number (1690381411).

Almost surely, 23380762821 is an apocalyptic number.

It is an amenable number.

3380762821 is a deficient number, since it is larger than the sum of its proper divisors (1).

3380762821 is an equidigital number, since it uses as much as digits as its factorization.

3380762821 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96768, while the sum is 40.

The square root of 3380762821 is about 58144.3275049252. The cubic root of 3380762821 is about 1500.8532657922.

The spelling of 3380762821 in words is "three billion, three hundred eighty million, seven hundred sixty-two thousand, eight hundred twenty-one".