21384672400

Names of 21384672400

• Cardinal: 21384672400 can be written as Twenty-one billion, three hundred eighty-four million, six hundred seventy-two thousand, four hundred.

Scientific notation

• Scientific notation: 2.13846724 × 10¹⁰

Factors of 21384672400

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 9719

Divisors of 21384672400

• Number of divisors d(n): 240
• Complete list of divisors:
  1 2 4 5 7 8 10 13 14 16 20 25 26 28 35 40 50 52 56 61 65 70 80 91 100 104 112 122 130 140 175 182 200 208 244 260 280 305 325 350 364 400 427 455 488 520 560 610 650 700 728 793 854 910 976 1040 1220 1300 1400 1456 1525 1586 1708 1820 2135 2275 2440 2600 2800 3050 3172 3416 3640 3965 4270 4550 4880 5200 5551 6100 6344 6832 7280 7930 8540 9100 9631 10675 11102 12200 12688 15860 17080 18200 19262 19825 21350 22204 24400 27755 31720 34160 36400 38524 39650 42700 44408 48155 55510 63440 67417 77048 79300 85400 88816 96310 111020 125203 134834 138775 154096 158600 170800 192620 222040 240775 250406 269668 277550 317200 337085 385240 444080 481550 500812 539336 555100 587491 626015 674170 770480 876421 963100 1001624 1078672 1110200 1174982 1252030 1348340 1685425 1752842 1926200 2003248 2220400 2349964 2504060 2696680 2937455 3130075 3370850 3505684 3852400 4112437 4382105 4699928 5008120 5393360 5874910 6260150 6741700 7011368 7637383 8224874 8764210 9399856 10016240 11749820 12520300 13483400 14022736 14687275 15274766 16449748 17528420 20562185 21910525 23499640 25040600 26966800 29374550 30549532 32899496 35056840 38186915 41124370 43821050 46999280 50081200 53461681 58749100 61099064 65798992 70113680 76373830 82248740 87642100 102810925 106923362 117498200 122198128 152747660 164497480 175284200 190934575 205621850 213846724 234996400 267308405 305495320 328994960 350568400 381869150 411243700 427693448 534616810 610990640 763738300 822487400 855386896 1069233620 1336542025 1527476600 1644974800 2138467240 2673084050 3054953200 4276934480 5346168100 10692336200 21384672400
• Sum of all divisors σ(n): 64276108288
• Sum of proper divisors (its aliquot sum) s(n): 42891435888
• 21384672400 is an abundant number, because the sum of its proper divisors (42891435888) is greater than itself. Its abundance is 21506763488

Bases of 21384672400

• Binary: 10011111010101000000011010010010000₂
• Hexadecimal: 0x4FAA03490
• Base-36: 9TNVQTS

Squares and roots of 21384672400

• 21384672400 squared (21384672400²) is 457304213655321760000
• 21384672400 cubed (21384672400³) is 9779300796158662354191424000000
• The square root of 21384672400 is 146234.9903408893
• The cube root of 21384672400 is 2775.6680976673

Scales and comparisons

• 21,384,672,400 seconds is equal to 679 years, 50 weeks, 1 day, 18 hours, 46 minutes, 40 seconds.
• To count from 1 to 21,384,672,400 would take you about one thousand, three hundred fifty-nine 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 21384672400 cubic inches would be around 231.3 feet tall.

Recreational maths with 21384672400

• 21384672400 backwards is 00427648312
• The number of decimal digits it has is: 11
• The sum of 21384672400's digits is 37
• More coming soon!