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444899345 = 511192711571
BaseRepresentation
bin11010100001001…
…010000000010001
31011000011020011112
4122201022000101
51402343234340
6112051423105
714011403432
oct3241120021
91130136145
10444899345
11209152510
12104bb4a95
1371232167
1443131489
15290d2065
hex1a84a011

444899345 has 32 divisors (see below), whose sum is σ = 615720960. Its totient is φ = 305208000.

The previous prime is 444899297. The next prime is 444899347. The reversal of 444899345 is 543998444.

It is not a de Polignac number, because 444899345 - 28 = 444899089 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 444899293 and 444899302.

It is not an unprimeable number, because it can be changed into a prime (444899347) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 282410 + ... + 283980.

It is an arithmetic number, because the mean of its divisors is an integer number (19241280).

Almost surely, 2444899345 is an apocalyptic number.

It is an amenable number.

444899345 is a deficient number, since it is larger than the sum of its proper divisors (170821615).

444899345 is a wasteful number, since it uses less digits than its factorization.

444899345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1877.

The product of its digits is 2488320, while the sum is 50.

The square root of 444899345 is about 21092.6372225002. The cubic root of 444899345 is about 763.4031051615.

Subtracting 444899345 from its reverse (543998444), we obtain a palindrome (99099099).

The spelling of 444899345 in words is "four hundred forty-four million, eight hundred ninety-nine thousand, three hundred forty-five".

Divisors: 1 5 11 19 55 95 209 271 1045 1355 1571 2981 5149 7855 14905 17281 25745 29849 56639 86405 149245 283195 328339 425741 1641695 2128705 4683151 8089079 23415755 40445395 88979869 444899345