Search a number
-
+
8188841 is a prime number
BaseRepresentation
bin11111001111001110101001
3120102000222102
4133033032221
54044020331
6451303145
7126414113
oct37171651
916360872
108188841
114693441
1228aaab5
13190938b
1411323b3
15abb4cb
hex7cf3a9

8188841 has 2 divisors, whose sum is σ = 8188842. Its totient is φ = 8188840.

The previous prime is 8188819. The next prime is 8188861. The reversal of 8188841 is 1488818.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6651241 + 1537600 = 2579^2 + 1240^2 .

It is a cyclic number.

It is not a de Polignac number, because 8188841 - 222 = 3994537 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8188795 and 8188804.

It is not a weakly prime, because it can be changed into another prime (8188861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4094420 + 4094421.

It is an arithmetic number, because the mean of its divisors is an integer number (4094421).

Almost surely, 28188841 is an apocalyptic number.

It is an amenable number.

8188841 is a deficient number, since it is larger than the sum of its proper divisors (1).

8188841 is an equidigital number, since it uses as much as digits as its factorization.

8188841 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16384, while the sum is 38.

The square root of 8188841 is about 2861.6151033988. The cubic root of 8188841 is about 201.5614526036.

The spelling of 8188841 in words is "eight million, one hundred eighty-eight thousand, eight hundred forty-one".