Search a number
-
+
24441423121 = 26990860309
BaseRepresentation
bin10110110000110100…
…101000010100010001
32100002100211221101101
4112300310220110101
5400024001014441
615121144304401
71523452445233
oct266064502421
970070757341
1024441423121
11a402600a45
1248a1472101
1323c68b215b
14127c104253
15980b38231
hex5b0d28511

24441423121 has 4 divisors (see below), whose sum is σ = 24532283700. Its totient is φ = 24350562544.

The previous prime is 24441423043. The next prime is 24441423143. The reversal of 24441423121 is 12132414442.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12132414442 = 26066207221.

It can be written as a sum of positive squares in 2 ways, for example, as 1392110721 + 23049312400 = 37311^2 + 151820^2 .

It is a cyclic number.

It is not a de Polignac number, because 24441423121 - 29 = 24441422609 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 24441423121.

It is not an unprimeable number, because it can be changed into a prime (24441453121) 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, 45429886 + ... + 45430423.

It is an arithmetic number, because the mean of its divisors is an integer number (6133070925).

Almost surely, 224441423121 is an apocalyptic number.

It is an amenable number.

24441423121 is a deficient number, since it is larger than the sum of its proper divisors (90860579).

24441423121 is an equidigital number, since it uses as much as digits as its factorization.

24441423121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90860578.

The product of its digits is 6144, while the sum is 28.

Adding to 24441423121 its reverse (12132414442), we get a palindrome (36573837563).

The spelling of 24441423121 in words is "twenty-four billion, four hundred forty-one million, four hundred twenty-three thousand, one hundred twenty-one".

Divisors: 1 269 90860309 24441423121