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444100000 = 25554441
BaseRepresentation
bin11010011110000…
…110110110100000
31010221122121200011
4122132012312200
51402142200000
6112022334304
714001534121
oct3236066640
91127577604
10444100000
112087569a3
1210488a394
1371012386
1442da4048
1528ec52ba
hex1a786da0

444100000 has 72 divisors (see below), whose sum is σ = 1093078476. Its totient is φ = 177600000.

The previous prime is 444099989. The next prime is 444100003. The reversal of 444100000 is 1444.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 71301136 + 372798864 = 8444^2 + 19308^2 .

It is a nialpdrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (444100003) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 97780 + ... + 102220.

Almost surely, 2444100000 is an apocalyptic number.

444100000 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 444100000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (546539238).

444100000 is an abundant number, since it is smaller than the sum of its proper divisors (648978476).

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

444100000 is an frugal number, since it uses more digits than its factorization.

444100000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4476 (or 4448 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 444100000 is about 21073.6802671010. The cubic root of 444100000 is about 762.9456321871.

Adding to 444100000 its reverse (1444), we get a palindrome (444101444).

The spelling of 444100000 in words is "four hundred forty-four million, one hundred thousand".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 80 100 125 160 200 250 400 500 625 800 1000 1250 2000 2500 3125 4000 4441 5000 6250 8882 10000 12500 17764 20000 22205 25000 35528 44410 50000 71056 88820 100000 111025 142112 177640 222050 355280 444100 555125 710560 888200 1110250 1776400 2220500 2775625 3552800 4441000 5551250 8882000 11102500 13878125 17764000 22205000 27756250 44410000 55512500 88820000 111025000 222050000 444100000