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241813 = 11131989
BaseRepresentation
bin111011000010010101
3110021201001
4323002111
530214223
65103301
72024665
oct730225
9407631
10241813
11155750
12b7b31
13860b0
14641a5
154b9ad
hex3b095

241813 has 16 divisors (see below), whose sum is σ = 302400. Its totient is φ = 190080.

The previous prime is 241811. The next prime is 241817. The reversal of 241813 is 318142.

241813 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 241813 - 21 = 241811 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (241811) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2673 + ... + 2761.

It is an arithmetic number, because the mean of its divisors is an integer number (18900).

2241813 is an apocalyptic number.

It is an amenable number.

241813 is a deficient number, since it is larger than the sum of its proper divisors (60587).

241813 is a wasteful number, since it uses less digits than its factorization.

241813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132.

The product of its digits is 192, while the sum is 19.

The square root of 241813 is about 491.7448525404. The cubic root of 241813 is about 62.3007414113.

Adding to 241813 its reverse (318142), we get a palindrome (559955).

The spelling of 241813 in words is "two hundred forty-one thousand, eight hundred thirteen".

Divisors: 1 11 13 19 89 143 209 247 979 1157 1691 2717 12727 18601 21983 241813