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1444224205 = 51716990873
BaseRepresentation
bin101011000010101…
…0001110011001101
310201122120012011101
41112011101303031
510424210133310
6355150423101
750534463124
oct12605216315
93648505141
101444224205
11681255026
12343801a91
131a0293c48
14d9b44abb
1586bcd43a
hex56151ccd

1444224205 has 8 divisors (see below), whose sum is σ = 1835014392. Its totient is φ = 1087415808.

The previous prime is 1444224203. The next prime is 1444224233. The reversal of 1444224205 is 5024224441.

It can be written as a sum of positive squares in 4 ways, for example, as 53978409 + 1390245796 = 7347^2 + 37286^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1444224205 - 21 = 1444224203 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1444224203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8495352 + ... + 8495521.

It is an arithmetic number, because the mean of its divisors is an integer number (229376799).

Almost surely, 21444224205 is an apocalyptic number.

It is an amenable number.

1444224205 is a deficient number, since it is larger than the sum of its proper divisors (390790187).

1444224205 is a wasteful number, since it uses less digits than its factorization.

1444224205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16990895.

The product of its (nonzero) digits is 10240, while the sum is 28.

The square root of 1444224205 is about 38002.9499512867. The cubic root of 1444224205 is about 1130.3463592237.

Adding to 1444224205 its reverse (5024224441), we get a palindrome (6468448646).

The spelling of 1444224205 in words is "one billion, four hundred forty-four million, two hundred twenty-four thousand, two hundred five".

Divisors: 1 5 17 85 16990873 84954365 288844841 1444224205