Search a number
-
+
444445044 = 223107346141
BaseRepresentation
bin11010011111011…
…011000101110100
31010222022010222120
4122133123011310
51402234220134
6112033555540
714004502101
oct3237330564
91128263876
10444445044
1120897215a
12104a15bb0
1371103444
1443053aa8
1529042649
hex1a7db174

444445044 has 24 divisors (see below), whose sum is σ = 1046733408. Its totient is φ = 146763360.

The previous prime is 444445013. The next prime is 444445049. The reversal of 444445044 is 440544444.

It is a junction number, because it is equal to n+sod(n) for n = 444444996 and 444445014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444445049) by changing a digit.

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, 171787 + ... + 174354.

It is an arithmetic number, because the mean of its divisors is an integer number (43613892).

Almost surely, 2444445044 is an apocalyptic number.

It is an amenable number.

444445044 is an abundant number, since it is smaller than the sum of its proper divisors (602288364).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

444445044 is a wasteful number, since it uses less digits than its factorization.

444445044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346255 (or 346253 counting only the distinct ones).

The product of its (nonzero) digits is 81920, while the sum is 33.

The square root of 444445044 is about 21081.8652874929. The cubic root of 444445044 is about 763.1431715286.

Adding to 444445044 its reverse (440544444), we get a palindrome (884989488).

The spelling of 444445044 in words is "four hundred forty-four million, four hundred forty-five thousand, forty-four".

Divisors: 1 2 3 4 6 12 107 214 321 428 642 1284 346141 692282 1038423 1384564 2076846 4153692 37037087 74074174 111111261 148148348 222222522 444445044