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7242353 = 18140013
BaseRepresentation
bin11011101000001001110001
3111121221122022
4123220021301
53323223403
6415121225
7115362506
oct33501161
914557568
107242353
1140a7318
122513215
131667621
14d674ad
15980d38
hex6e8271

7242353 has 4 divisors (see below), whose sum is σ = 7282548. Its totient is φ = 7202160.

The previous prime is 7242349. The next prime is 7242359. The reversal of 7242353 is 3532427.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3532427 = 3795471.

It can be written as a sum of positive squares in 2 ways, for example, as 1151329 + 6091024 = 1073^2 + 2468^2 .

It is a cyclic number.

It is not a de Polignac number, because 7242353 - 22 = 7242349 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7242359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19826 + ... + 20187.

It is an arithmetic number, because the mean of its divisors is an integer number (1820637).

Almost surely, 27242353 is an apocalyptic number.

It is an amenable number.

7242353 is a deficient number, since it is larger than the sum of its proper divisors (40195).

7242353 is a wasteful number, since it uses less digits than its factorization.

7242353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40194.

The product of its digits is 5040, while the sum is 26.

The square root of 7242353 is about 2691.1620166761. The cubic root of 7242353 is about 193.4757607511.

The spelling of 7242353 in words is "seven million, two hundred forty-two thousand, three hundred fifty-three".

Divisors: 1 181 40013 7242353