Search a number
-
+
24006401 = 31177191
BaseRepresentation
bin101101110010…
…0111100000001
31200011122120222
41123210330001
522121201101
62214312425
7411023336
oct133447401
950148528
1024006401
1112607401
128058715
134c86b93
14328c98d
15219301b
hex16e4f01

24006401 has 4 divisors (see below), whose sum is σ = 24083904. Its totient is φ = 23928900.

The previous prime is 24006383. The next prime is 24006439. The reversal of 24006401 is 10460042.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 10460042 = 25230021.

It is a cyclic number.

It is not a de Polignac number, because 24006401 - 26 = 24006337 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 24006401.

It is not an unprimeable number, because it can be changed into a prime (24006491) 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, 38285 + ... + 38906.

It is an arithmetic number, because the mean of its divisors is an integer number (6020976).

Almost surely, 224006401 is an apocalyptic number.

It is an amenable number.

24006401 is a deficient number, since it is larger than the sum of its proper divisors (77503).

24006401 is an equidigital number, since it uses as much as digits as its factorization.

24006401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77502.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 24006401 is about 4899.6327413389. The cubic root of 24006401 is about 288.4755557806.

Adding to 24006401 its reverse (10460042), we get a palindrome (34466443).

The spelling of 24006401 in words is "twenty-four million, six thousand, four hundred one".

Divisors: 1 311 77191 24006401