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7241 = 13557
BaseRepresentation
bin1110001001001
3100221012
41301021
5212431
653305
730053
oct16111
910835
107241
115493
124235
1333b0
1428d3
15222b
hex1c49

7241 has 4 divisors (see below), whose sum is σ = 7812. Its totient is φ = 6672.

The previous prime is 7237. The next prime is 7243. The reversal of 7241 is 1427.

Subtracting from 7241 its sum of digits (14), we obtain a palindrome (7227).

Adding to 7241 its reverse (1427), we get a palindrome (8668).

It is a happy number.

7241 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 841 + 6400 = 29^2 + 80^2 .

It is a cyclic number.

It is not a de Polignac number, because 7241 - 22 = 7237 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (7243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 266 + ... + 291.

It is an arithmetic number, because the mean of its divisors is an integer number (1953).

27241 is an apocalyptic number.

It is an amenable number.

7241 is a deficient number, since it is larger than the sum of its proper divisors (571).

7241 is a wasteful number, since it uses less digits than its factorization.

7241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 570.

The product of its digits is 56, while the sum is 14.

The square root of 7241 is about 85.0940655980. The cubic root of 7241 is about 19.3463711766.

The spelling of 7241 in words is "seven thousand, two hundred forty-one", and thus it is an iban number.

Divisors: 1 13 557 7241