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444421200 = 243521792069
BaseRepresentation
bin11010011111010…
…101010001010000
31010222020221021110
4122133111101100
51402232434300
6112033253320
714004342426
oct3237252120
91128227243
10444421200
11208956253
12104a04240
13710c5632
1443049116
152903a550
hex1a7d5450

444421200 has 120 divisors (see below), whose sum is σ = 1432274400. Its totient is φ = 117793280.

The previous prime is 444421193. The next prime is 444421223. The reversal of 444421200 is 2124444.

It is a tau number, because it is divible by the number of its divisors (120).

It is a super-3 number, since 3×4444212003 (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 213766 + ... + 215834.

It is an arithmetic number, because the mean of its divisors is an integer number (11935620).

Almost surely, 2444421200 is an apocalyptic number.

444421200 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 444421200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (716137200).

444421200 is an abundant number, since it is smaller than the sum of its proper divisors (987853200).

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

444421200 is a wasteful number, since it uses less digits than its factorization.

444421200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2269 (or 2258 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 21.

The square root of 444421200 is about 21081.2997701755. The cubic root of 444421200 is about 763.1295240136.

Adding to 444421200 its reverse (2124444), we get a palindrome (446545644).

It can be divided in two parts, 44 and 4421200, that added together give a palindrome (4421244).

The spelling of 444421200 in words is "four hundred forty-four million, four hundred twenty-one thousand, two hundred".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 25 30 40 48 50 60 75 80 100 120 150 179 200 240 300 358 400 537 600 716 895 1074 1200 1432 1790 2069 2148 2685 2864 3580 4138 4296 4475 5370 6207 7160 8276 8592 8950 10345 10740 12414 13425 14320 16552 17900 20690 21480 24828 26850 31035 33104 35800 41380 42960 49656 51725 53700 62070 71600 82760 99312 103450 107400 124140 155175 165520 206900 214800 248280 310350 370351 413800 496560 620700 740702 827600 1111053 1241400 1481404 1851755 2222106 2482800 2962808 3703510 4444212 5555265 5925616 7407020 8888424 9258775 11110530 14814040 17776848 18517550 22221060 27776325 29628080 37035100 44442120 55552650 74070200 88884240 111105300 148140400 222210600 444421200