Search a number
-
+
4008480821 is a prime number
BaseRepresentation
bin1110111011101100…
…1001000000110101
3101100100122220221122
43232323021000311
531202132341241
61501431353325
7201222345002
oct35673110065
911310586848
104008480821
111777756a74
1293a522845
134bb600957
142a05208a9
15186d9d04b
hexeeec9035

4008480821 has 2 divisors, whose sum is σ = 4008480822. Its totient is φ = 4008480820.

The previous prime is 4008480809. The next prime is 4008480851. The reversal of 4008480821 is 1280848004.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2419262596 + 1589218225 = 49186^2 + 39865^2 .

It is a cyclic number.

It is not a de Polignac number, because 4008480821 - 214 = 4008464437 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4008480851) 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, 2004240410 + 2004240411.

It is an arithmetic number, because the mean of its divisors is an integer number (2004240411).

Almost surely, 24008480821 is an apocalyptic number.

It is an amenable number.

4008480821 is a deficient number, since it is larger than the sum of its proper divisors (1).

4008480821 is an equidigital number, since it uses as much as digits as its factorization.

4008480821 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16384, while the sum is 35.

The square root of 4008480821 is about 63312.5644797302. The cubic root of 4008480821 is about 1588.5221320492.

The spelling of 4008480821 in words is "four billion, eight million, four hundred eighty thousand, eight hundred twenty-one".