Search a number
-
+
2806770409 is a prime number
BaseRepresentation
bin1010011101001011…
…1110101011101001
321020121102201011121
42213102332223221
521222013123114
61142302455241
7126361104052
oct24722765351
97217381147
102806770409
111210392173
12663b94521
1335965aac1
141c8aa7729
15116625a24
hexa74beae9

2806770409 has 2 divisors, whose sum is σ = 2806770410. Its totient is φ = 2806770408.

The previous prime is 2806770401. The next prime is 2806770419. The reversal of 2806770409 is 9040776082.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2803384809 + 3385600 = 52947^2 + 1840^2 .

It is a cyclic number.

It is not a de Polignac number, because 2806770409 - 23 = 2806770401 is a prime.

It is not a weakly prime, because it can be changed into another prime (2806770401) 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, 1403385204 + 1403385205.

It is an arithmetic number, because the mean of its divisors is an integer number (1403385205).

Almost surely, 22806770409 is an apocalyptic number.

It is an amenable number.

2806770409 is a deficient number, since it is larger than the sum of its proper divisors (1).

2806770409 is an equidigital number, since it uses as much as digits as its factorization.

2806770409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 169344, while the sum is 43.

The square root of 2806770409 is about 52978.9619471730. The cubic root of 2806770409 is about 1410.5948580685.

The spelling of 2806770409 in words is "two billion, eight hundred six million, seven hundred seventy thousand, four hundred nine".