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12444205001 = 67185734403
BaseRepresentation
bin10111001011011101…
…10111111111001001
31012010020222010001112
423211232313333021
5200441204030001
65414454300105
7620243666024
oct134556677711
935106863045
1012444205001
11530647a448
1224b3657635
1312341b2917
14860a0c1bb
154cc766cbb
hex2e5bb7fc9

12444205001 has 4 divisors (see below), whose sum is σ = 12629939472. Its totient is φ = 12258470532.

The previous prime is 12444204979. The next prime is 12444205019. The reversal of 12444205001 is 10050244421.

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.

It is a cyclic number.

It is not a de Polignac number, because 12444205001 - 210 = 12444203977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12444205801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92867135 + ... + 92867268.

It is an arithmetic number, because the mean of its divisors is an integer number (3157484868).

Almost surely, 212444205001 is an apocalyptic number.

It is an amenable number.

12444205001 is a deficient number, since it is larger than the sum of its proper divisors (185734471).

12444205001 is an equidigital number, since it uses as much as digits as its factorization.

12444205001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185734470.

The product of its (nonzero) digits is 1280, while the sum is 23.

Adding to 12444205001 its reverse (10050244421), we get a palindrome (22494449422).

It can be divided in two parts, 1244420 and 5001, that added together give a palindrome (1249421).

The spelling of 12444205001 in words is "twelve billion, four hundred forty-four million, two hundred five thousand, one".

Divisors: 1 67 185734403 12444205001