Search a number
-
+
7245949 is a prime number
BaseRepresentation
bin11011101001000001111101
3111122010120111
4123221001331
53323332244
6415150021
7115406134
oct33510175
914563514
107245949
1140a9a97
122515311
131669159
14d6891b
15981e34
hex6e907d

7245949 has 2 divisors, whose sum is σ = 7245950. Its totient is φ = 7245948.

The previous prime is 7245941. The next prime is 7245991. The reversal of 7245949 is 9495427.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5257849 + 1988100 = 2293^2 + 1410^2 .

It is a cyclic number.

It is not a de Polignac number, because 7245949 - 23 = 7245941 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7245941) 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, 3622974 + 3622975.

It is an arithmetic number, because the mean of its divisors is an integer number (3622975).

Almost surely, 27245949 is an apocalyptic number.

It is an amenable number.

7245949 is a deficient number, since it is larger than the sum of its proper divisors (1).

7245949 is an equidigital number, since it uses as much as digits as its factorization.

7245949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 90720, while the sum is 40.

The square root of 7245949 is about 2691.8300466411. The cubic root of 7245949 is about 193.5077772204.

The spelling of 7245949 in words is "seven million, two hundred forty-five thousand, nine hundred forty-nine".