21490920
21,490,920 is an even composite number composed of five prime numbers multiplied together.
21490920 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of two hundred twenty-four divisors.
Prime factorization of 21490920:
23 × 36 × 5 × 11 × 67
(2 × 2 × 2 × 3 × 3 × 3 × 3 × 3 × 3 × 5 × 11 × 67)See below for interesting mathematical facts about the number 21490920 from the Numbermatics database.
Names of 21490920
- Cardinal: 21490920 can be written as Twenty-one million, four hundred ninety thousand, nine hundred twenty.
Scientific notation
- Scientific notation: 2.149092 × 107
Factors of 21490920
Divisors of 21490920
- Number of divisors d(n): 224
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Complete list of divisors:
1 2 3 4 5 6 8 9 10 11 12 15 18 20 22 24 27 30 33 36 40 44 45 54 55 60 66 67 72 81 88 90 99 108 110 120 132 134 135 162 165 180 198 201 216 220 243 264 268 270 297 324 330 335 360 396 402 405 440 486 495 536 540 594 603 648 660 670 729 737 792 804 810 891 972 990 1005 1080 1188 1206 1215 1320 1340 1458 1474 1485 1608 1620 1782 1809 1944 1980 2010 2211 2376 2412 2430 2673 2680 2916 2948 2970 3015 3240 3564 3618 3645 3685 3960 4020 4422 4455 4824 4860 5346 5427 5832 5896 5940 6030 6633 7128 7236 7290 7370 8019 8040 8844 8910 9045 9720 10692 10854 11055 11880 12060 13266 13365 14472 14580 14740 16038 16281 17688 17820 18090 19899 21384 21708 22110 24120 26532 26730 27135 29160 29480 32076 32562 33165 35640 36180 39798 40095 43416 44220 48843 53064 53460 54270 59697 64152 65124 66330 72360 79596 80190 81405 88440 97686 99495 106920 108540 119394 130248 132660 159192 160380 162810 179091 195372 198990 217080 238788 244215 265320 298485 320760 325620 358182 390744 397980 477576 488430 537273 596970 651240 716364 795960 895455 976860 1074546 1193940 1432728 1790910 1953720 2149092 2387880 2686365 3581820 4298184 5372730 7163640 10745460 21490920
- Sum of all divisors σ(n): 80269920
- Sum of proper divisors (its aliquot sum) s(n): 58779000
- 21490920 is an abundant number, because the sum of its proper divisors (58779000) is greater than itself. Its abundance is 37288080
Bases of 21490920
- Binary: 10100011111101100111010002
- Hexadecimal: 0x147ECE8
- Base-36: CSMI0
Squares and roots of 21490920
- 21490920 squared (214909202) is 461859642446400
- 21490920 cubed (214909203) is 9925788627044186688000
-
The
square root of 21490920 is 4635.8300227683 -
The
cube root of 21490920 is 278.0257381757
Scales and comparisons
How big is 21490920?- 21,490,920 seconds is equal to 35 weeks, 3 days, 17 hours, 42 minutes.
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To count from 1 to 21,490,920 would take you about two days!
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 21490920 cubic inches would be around 23.2 feet tall.
Recreational maths with 21490920
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The information we have on file for 21490920 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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