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441444441 = 36710920149
BaseRepresentation
bin11010010011111…
…110100001011001
31010202122200221010
4122103332201121
51401002210231
6111445404133
713640134014
oct3223764131
91122580833
10441444441
11207202819
12103a09649
13705c2739
14428b237b
1528b4d546
hex1a4fe859

441444441 has 16 divisors (see below), whose sum is σ = 602888000. Its totient is φ = 287229888.

The previous prime is 441444427. The next prime is 441444449. The reversal of 441444441 is 144444144.

It is not a de Polignac number, because 441444441 - 210 = 441443417 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 441444399 and 441444408.

It is not an unprimeable number, because it can be changed into a prime (441444449) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11835 + ... + 31983.

It is an arithmetic number, because the mean of its divisors is an integer number (37680500).

Almost surely, 2441444441 is an apocalyptic number.

It is an amenable number.

441444441 is a deficient number, since it is larger than the sum of its proper divisors (161443559).

441444441 is a wasteful number, since it uses less digits than its factorization.

441444441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20328.

The product of its digits is 16384, while the sum is 30.

The square root of 441444441 is about 21010.5792637899. The cubic root of 441444441 is about 761.4218770608.

Adding to 441444441 its reverse (144444144), we get a palindrome (585888585).

The spelling of 441444441 in words is "four hundred forty-one million, four hundred forty-four thousand, four hundred forty-one".

Divisors: 1 3 67 109 201 327 7303 20149 21909 60447 1349983 2196241 4049949 6588723 147148147 441444441