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24842 = 212421
BaseRepresentation
bin110000100001010
31021002002
412010022
51243332
6311002
7132266
oct60412
937062
1024842
1117734
1212462
13b3cc
1490a6
157562
hex610a

24842 has 4 divisors (see below), whose sum is σ = 37266. Its totient is φ = 12420.

The previous prime is 24841. The next prime is 24847.

24842 is nontrivially palindromic in base 10.

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

It can be written as a sum of positive squares in only one way, i.e., 14641 + 10201 = 121^2 + 101^2 .

It is a d-powerful number, because it can be written as 2 + 44 + 8 + 47 + 213 .

It is not an unprimeable number, because it can be changed into a prime (24841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6209 + ... + 6212.

224842 is an apocalyptic number.

24842 is a deficient number, since it is larger than the sum of its proper divisors (12424).

24842 is a wasteful number, since it uses less digits than its factorization.

24842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12423.

The product of its digits is 512, while the sum is 20.

The square root of 24842 is about 157.6134512026. The cubic root of 24842 is about 29.1784478483.

The spelling of 24842 in words is "twenty-four thousand, eight hundred forty-two".

Divisors: 1 2 12421 24842