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444442543 = 1742162099
BaseRepresentation
bin11010011111011…
…010011110101111
31010222022000112221
4122133122132233
51402234130133
6112033540211
714004461566
oct3237323657
91128260487
10444442543
11208970296
12104a14667
137110226c
1443052bdd
1529041a2d
hex1a7da7af

444442543 has 8 divisors (see below), whose sum is σ = 471711600. Its totient is φ = 417298560.

The previous prime is 444442529. The next prime is 444442549. The reversal of 444442543 is 345244444.

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 444442543 - 213 = 444434351 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 444442499 and 444442508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444442549) 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, 23893 + ... + 38206.

It is an arithmetic number, because the mean of its divisors is an integer number (58963950).

Almost surely, 2444442543 is an apocalyptic number.

444442543 is a deficient number, since it is larger than the sum of its proper divisors (27269057).

444442543 is a wasteful number, since it uses less digits than its factorization.

444442543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62537.

The product of its digits is 122880, while the sum is 34.

The square root of 444442543 is about 21081.8059710263. The cubic root of 444442543 is about 763.1417400621.

Adding to 444442543 its reverse (345244444), we get a palindrome (789686987).

The spelling of 444442543 in words is "four hundred forty-four million, four hundred forty-two thousand, five hundred forty-three".

Divisors: 1 17 421 7157 62099 1055683 26143679 444442543