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444444044 = 221143234907
BaseRepresentation
bin11010011111011…
…010110110001100
31010222022002121112
4122133122312030
51402234202134
6112033551152
714004466142
oct3237326614
91128262545
10444444044
11208971430
12104a154b8
1371102b55
1443053592
15290421ce
hex1a7dad8c

444444044 has 24 divisors (see below), whose sum is σ = 868219968. Its totient is φ = 197321040.

The previous prime is 444443999. The next prime is 444444083. The reversal of 444444044 is 440444444.

It is a self number, because there is not a number n which added to its sum of digits gives 444444044.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 115562 + ... + 119345.

It is an arithmetic number, because the mean of its divisors is an integer number (36175832).

Almost surely, 2444444044 is an apocalyptic number.

444444044 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

444444044 is a deficient number, since it is larger than the sum of its proper divisors (423775924).

444444044 is a wasteful number, since it uses less digits than its factorization.

444444044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234965 (or 234963 counting only the distinct ones).

The product of its (nonzero) digits is 65536, while the sum is 32.

The square root of 444444044 is about 21081.8415704132. The cubic root of 444444044 is about 763.1425991716.

Adding to 444444044 its reverse (440444444), we get a palindrome (884888488).

The spelling of 444444044 in words is "four hundred forty-four million, four hundred forty-four thousand, forty-four".

Divisors: 1 2 4 11 22 43 44 86 172 473 946 1892 234907 469814 939628 2583977 5167954 10101001 10335908 20202002 40404004 111111011 222222022 444444044