Search a number
-
+
7028249 is a prime number
BaseRepresentation
bin11010110011111000011001
3111020001221112
4122303320121
53244400444
6410350105
7113511344
oct32637031
914201845
107028249
113a70478
12242b335
1315c1037
14d0d45b
1593c69e
hex6b3e19

7028249 has 2 divisors, whose sum is σ = 7028250. Its totient is φ = 7028248.

The previous prime is 7028243. The next prime is 7028267. The reversal of 7028249 is 9428207.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6538249 + 490000 = 2557^2 + 700^2 .

It is a cyclic number.

It is not a de Polignac number, because 7028249 - 216 = 6962713 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (7028243) 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, 3514124 + 3514125.

It is an arithmetic number, because the mean of its divisors is an integer number (3514125).

Almost surely, 27028249 is an apocalyptic number.

It is an amenable number.

7028249 is a deficient number, since it is larger than the sum of its proper divisors (1).

7028249 is an equidigital number, since it uses as much as digits as its factorization.

7028249 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 7028249 is about 2651.0844950699. The cubic root of 7028249 is about 191.5500985800.

The spelling of 7028249 in words is "seven million, twenty-eight thousand, two hundred forty-nine".