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444520043 = 1158076959
BaseRepresentation
bin11010011111101…
…101011001101011
31010222102221212022
4122133231121223
51402244120133
6112035335055
714005233542
oct3237553153
91128387768
10444520043
11208a13540
12104a5148b
137112b616
1443073159
1529059998
hex1a7ed66b

444520043 has 8 divisors (see below), whose sum is σ = 485084160. Its totient is φ = 403981480.

The previous prime is 444520001. The next prime is 444520049. The reversal of 444520043 is 340025444.

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 444520043 - 26 = 444519979 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 444519994 and 444520021.

It is not an unprimeable number, because it can be changed into a prime (444520049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60398 + ... + 67356.

It is an arithmetic number, because the mean of its divisors is an integer number (60635520).

Almost surely, 2444520043 is an apocalyptic number.

444520043 is a deficient number, since it is larger than the sum of its proper divisors (40564117).

444520043 is a wasteful number, since it uses less digits than its factorization.

444520043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12777.

The product of its (nonzero) digits is 7680, while the sum is 26.

The square root of 444520043 is about 21083.6439687261. The cubic root of 444520043 is about 763.1860952874.

Adding to 444520043 its reverse (340025444), we get a palindrome (784545487).

The spelling of 444520043 in words is "four hundred forty-four million, five hundred twenty thousand, forty-three".

Divisors: 1 11 5807 6959 63877 76549 40410913 444520043