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444212443 = 1014398143
BaseRepresentation
bin11010011110100…
…010010011011011
31010221212022220201
4122132202103123
51402204244233
6112025003031
714002513003
oct3236422333
91127768821
10444212443
11208823424
12104923477
13710515cc
1442dd3003
1528ee877d
hex1a7a24db

444212443 has 4 divisors (see below), whose sum is σ = 448610688. Its totient is φ = 439814200.

The previous prime is 444212413. The next prime is 444212449. The reversal of 444212443 is 344212444.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 444212443 - 25 = 444212411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (444212449) 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, 2198971 + ... + 2199172.

It is an arithmetic number, because the mean of its divisors is an integer number (112152672).

Almost surely, 2444212443 is an apocalyptic number.

444212443 is a deficient number, since it is larger than the sum of its proper divisors (4398245).

444212443 is a wasteful number, since it uses less digits than its factorization.

444212443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4398244.

The product of its digits is 12288, while the sum is 28.

The square root of 444212443 is about 21076.3479521477. The cubic root of 444212443 is about 763.0100175781.

Adding to 444212443 its reverse (344212444), we get a palindrome (788424887).

Subtracting from 444212443 its reverse (344212444), we obtain a palindrome (99999999).

It can be divided in two parts, 44421 and 2443, that added together give a palindrome (46864).

The spelling of 444212443 in words is "four hundred forty-four million, two hundred twelve thousand, four hundred forty-three".

Divisors: 1 101 4398143 444212443