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440000444 = 221329328879
BaseRepresentation
bin11010001110011…
…101111110111100
31010122221100010202
4122032131332330
51400120003234
6111354423032
713621641062
oct3216357674
91118840122
10440000444
11206406934
12103431a78
13702083c0
1442618032
152896577e
hex1a39dfbc

440000444 has 24 divisors (see below), whose sum is σ = 832090560. Its totient is φ = 202377024.

The previous prime is 440000413. The next prime is 440000489. The reversal of 440000444 is 444000044.

440000444 is a modest number, since divided by 444 gives 440 as remainder.

It is a zygodrome in base 10.

It is a congruent number.

It is an unprimeable number.

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, 797 + ... + 29675.

It is an arithmetic number, because the mean of its divisors is an integer number (34670440).

Almost surely, 2440000444 is an apocalyptic number.

It is an amenable number.

440000444 is a deficient number, since it is larger than the sum of its proper divisors (392090116).

440000444 is a wasteful number, since it uses less digits than its factorization.

440000444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29189 (or 29187 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

The square root of 440000444 is about 20976.1875468351. The cubic root of 440000444 is about 760.5907479872.

Adding to 440000444 its reverse (444000044), we get a palindrome (884000488).

The spelling of 440000444 in words is "four hundred forty million, four hundred forty-four", and thus it is an aban number.

Divisors: 1 2 4 13 26 52 293 586 1172 3809 7618 15236 28879 57758 115516 375427 750854 1501708 8461547 16923094 33846188 110000111 220000222 440000444