989720928
989,720,928 is an even composite number composed of five prime numbers multiplied together.
989720928 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred forty-four divisors.
Prime factorization of 989720928:
25 × 32 × 7 × 199 × 2467
(2 × 2 × 2 × 2 × 2 × 3 × 3 × 7 × 199 × 2467)See below for interesting mathematical facts about the number 989720928 from the Numbermatics database.
Names of 989720928
- Cardinal: 989720928 can be written as Nine hundred eighty-nine million, seven hundred twenty thousand, nine hundred twenty-eight.
Scientific notation
- Scientific notation: 9.89720928 × 108
Factors of 989720928
Divisors of 989720928
- Number of divisors d(n): 144
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Complete list of divisors:
1 2 3 4 6 7 8 9 12 14 16 18 21 24 28 32 36 42 48 56 63 72 84 96 112 126 144 168 199 224 252 288 336 398 504 597 672 796 1008 1194 1393 1592 1791 2016 2388 2467 2786 3184 3582 4179 4776 4934 5572 6368 7164 7401 8358 9552 9868 11144 12537 14328 14802 16716 17269 19104 19736 22203 22288 25074 28656 29604 33432 34538 39472 44406 44576 50148 51807 57312 59208 66864 69076 78944 88812 100296 103614 118416 133728 138152 155421 177624 200592 207228 236832 276304 310842 355248 401184 414456 490933 552608 621684 710496 828912 981866 1243368 1472799 1657824 1963732 2486736 2945598 3436531 3927464 4418397 4973472 5891196 6873062 7854928 8836794 10309593 11782392 13746124 15709856 17673588 20619186 23564784 27492248 30928779 35347176 41238372 47129568 54984496 61857558 70694352 82476744 109968992 123715116 141388704 164953488 247430232 329906976 494860464 989720928
- Sum of all divisors σ(n): 3234067200
- Sum of proper divisors (its aliquot sum) s(n): 2244346272
- 989720928 is an abundant number, because the sum of its proper divisors (2244346272) is greater than itself. Its abundance is 1254625344
Bases of 989720928
- Binary: 1110101111110111110001011000002
- Hexadecimal: 0x3AFDF160
- Base-36: GD95K0
Squares and roots of 989720928
- 989720928 squared (9897209282) is 979547515321181184
- 989720928 cubed (9897209283) is 969478675883773659484618752
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The
square root of 989720928 is 31459.8303873369 -
The
cube root of 989720928 is 996.5618352373
Scales and comparisons
How big is 989720928?- 989,720,928 seconds is equal to 31 years, 24 weeks, 3 days, 2 hours, 28 minutes, 48 seconds.
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To count from 1 to 989,720,928 would take you about forty-seven years!
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 989720928 cubic inches would be around 83 feet tall.
Recreational maths with 989720928
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