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244000001 = 734857143
BaseRepresentation
bin11101000101100…
…10010100000001
3122000010111002002
432202302110001
5444431000001
640113433345
76021652160
oct1642622401
9560114062
10244000001
111158058a3
126986b855
133b7216cb
14245973d7
151664b46b
hexe8b2501

244000001 has 4 divisors (see below), whose sum is σ = 278857152. Its totient is φ = 209142852.

The previous prime is 243999991. The next prime is 244000007. The reversal of 244000001 is 100000442.

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: 100000442 = 250000221.

It is a cyclic number.

It is not a de Polignac number, because 244000001 - 26 = 243999937 is a prime.

It is not an unprimeable number, because it can be changed into a prime (244000007) 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 in 3 ways as a sum of consecutive naturals, for example, 17428565 + ... + 17428578.

It is an arithmetic number, because the mean of its divisors is an integer number (69714288).

Almost surely, 2244000001 is an apocalyptic number.

It is an amenable number.

244000001 is a deficient number, since it is larger than the sum of its proper divisors (34857151).

244000001 is an equidigital number, since it uses as much as digits as its factorization.

244000001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34857150.

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 244000001 is about 15620.4993838225. The cubic root of 244000001 is about 624.8799778063.

Adding to 244000001 its reverse (100000442), we get a palindrome (344000443).

The spelling of 244000001 in words is "two hundred forty-four million, one", and thus it is an aban number.

Divisors: 1 7 34857143 244000001