Search a number
-
+
44400000000 = 21035837
BaseRepresentation
bin101001010110011100…
…100011110000000000
311020121022102200210110
4221112130203300000
51211412400000000
632221434031320
73131162526066
oct512634436000
9136538380713
1044400000000
1117914708184
128731578540
134257815565
142212ac6036
15124ce20850
hexa56723c00

44400000000 has 396 divisors, whose sum is σ = 151925703464. Its totient is φ = 11520000000.

The previous prime is 44399999999. The next prime is 44400000011. The reversal of 44400000000 is 444.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

It is a nialpdrome in base 10.

It is a zygodrome in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1199999982 + ... + 1200000018.

Almost surely, 244400000000 is an apocalyptic number.

44400000000 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 44400000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75962851732).

44400000000 is an abundant number, since it is smaller than the sum of its proper divisors (107525703464).

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

44400000000 is an frugal number, since it uses more digits than its factorization.

44400000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100 (or 47 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 12.

Adding to 44400000000 its reverse (444), we get a palindrome (44400000444).

Multiplying 44400000000 by its reverse (444), we get a square (19713600000000 = 44400002).

44400000000 divided by its reverse (444) gives a 8-th power (100000000 = 108).

The spelling of 44400000000 in words is "forty-four billion, four hundred million", and thus it is an aban number.