Search a number
BaseRepresentation
bin101101110100…
…0100000010101
31200012101122011
41123220200111
522122133023
62214504221
7411114052
oct133504025
950171564
1024021013
1112617385
128065071
134c90723
143294029
15219750d
hex16e8815

24021013 has 2 divisors, whose sum is σ = 24021014. Its totient is φ = 24021012.

The previous prime is 24020999. The next prime is 24021037. The reversal of 24021013 is 31012042.

Adding to 24021013 its reverse (31012042), we get a palindrome (55033055).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15944049 + 8076964 = 3993^2 + 2842^2 .

It is a cyclic number.

It is not a de Polignac number, because 24021013 - 25 = 24020981 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 24020984 and 24021002.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (24021043) 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 as a sum of consecutive naturals, namely, 12010506 + 12010507.

It is an arithmetic number, because the mean of its divisors is an integer number (12010507).

Almost surely, 224021013 is an apocalyptic number.

It is an amenable number.

24021013 is a deficient number, since it is larger than the sum of its proper divisors (1).

24021013 is an equidigital number, since it uses as much as digits as its factorization.

24021013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 24021013 is about 4901.1236466753. The cubic root of 24021013 is about 288.5340728109.

The spelling of 24021013 in words is "twenty-four million, twenty-one thousand, thirteen".