1221888
1,221,888 is an even composite number composed of four prime numbers multiplied together.
1221888 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of seventy-two divisors.
Prime factorization of 1221888:
28 × 3 × 37 × 43
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 3 × 37 × 43)See below for interesting mathematical facts about the number 1221888 from the Numbermatics database.
Names of 1221888
- Cardinal: 1221888 can be written as One million, two hundred twenty-one thousand, eight hundred eighty-eight.
Scientific notation
- Scientific notation: 1.221888 × 106
Factors of 1221888
Divisors of 1221888
- Number of divisors d(n): 72
-
Complete list of divisors:
1 2 3 4 6 8 12 16 24 32 37 43 48 64 74 86 96 111 128 129 148 172 192 222 256 258 296 344 384 444 516 592 688 768 888 1032 1184 1376 1591 1776 2064 2368 2752 3182 3552 4128 4736 4773 5504 6364 7104 8256 9472 9546 11008 12728 14208 16512 19092 25456 28416 33024 38184 50912 76368 101824 152736 203648 305472 407296 610944 1221888
- Sum of all divisors σ(n): 3417568
- Sum of proper divisors (its aliquot sum) s(n): 2195680
- 1221888 is an abundant number, because the sum of its proper divisors (2195680) is greater than itself. Its abundance is 973792
Bases of 1221888
- Binary: 1001010100101000000002
- Hexadecimal: 0x12A500
- Base-36: Q6TC
Squares and roots of 1221888
- 1221888 squared (12218882) is 1493010284544
- 1221888 cubed (12218883) is 1824291350560899072
-
The
square root of 1221888 is 1105.3904287627 -
The
cube root of 1221888 is 106.9080643909
Scales and comparisons
How big is 1221888?- 1,221,888 seconds is equal to 2 weeks, 3 hours, 24 minutes, 48 seconds.
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To count from 1 to 1,221,888 would take you about three weeks!
This is a very rough estimate, based on a speaking rate of half a second every third order of magnitude. If you speak quickly, you could probably say any randomly-chosen number between one and a thousand in around half a second. Very big numbers obviously take longer to say, so we add half a second for every extra x1000. (We do not count involuntary pauses, bathroom breaks or the necessity of sleep in our calculation!)
- A cube with a volume of 1221888 cubic inches would be around 8.9 feet tall.
Recreational maths with 1221888
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The information we have on file for 1221888 includes mathematical data and numerical statistics calculated using standard algorithms and methods. We are adding more all the time. If there are any features you would like to see, please contact us. Information provided for educational use, intellectual curiosity and fun!
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