Search a number
-
+
444430204400 = 2452713171395167
BaseRepresentation
bin1100111011110100001…
…10101011110111110000
31120111011002211121102202
412131322012223313300
524240143113020100
6540100213402332
744052252256430
oct6357206536760
91514132747382
10444430204400
1116153329a596
12721729393a8
1332ba949a910
1417720cac2c0
15b8622d37d5
hex677a1abdf0

444430204400 has 480 divisors, whose sum is σ = 1401730283520. Its totient is φ = 131403202560.

The previous prime is 444430204307. The next prime is 444430204409. The reversal of 444430204400 is 4402034444.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444430204409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 86010617 + ... + 86015783.

It is an arithmetic number, because the mean of its divisors is an integer number (2920271424).

Almost surely, 2444430204400 is an apocalyptic number.

444430204400 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 444430204400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (700865141760).

444430204400 is an abundant number, since it is smaller than the sum of its proper divisors (957300079120).

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

444430204400 is a wasteful number, since it uses less digits than its factorization.

444430204400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5361 (or 5350 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 29.

Adding to 444430204400 its reverse (4402034444), we get a palindrome (448832238844).

The spelling of 444430204400 in words is "four hundred forty-four billion, four hundred thirty million, two hundred four thousand, four hundred".