21383710720

Names of 21383710720

• Cardinal: 21383710720 can be written as Twenty-one billion, three hundred eighty-three million, seven hundred ten thousand, seven hundred twenty.

Scientific notation

• Scientific notation: 2.138371072 × 10¹⁰

Factors of 21383710720

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 16
• Sum of prime factors: 132

Divisors of 21383710720

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 4 5 8 10 16 20 31 32 40 41 53 62 64 80 82 106 124 128 155 160 164 205 212 248 256 265 310 320 328 410 424 496 512 530 620 640 656 820 848 961 992 1024 1060 1240 1271 1280 1312 1640 1643 1696 1922 1984 2048 2120 2173 2480 2542 2560 2624 3280 3286 3392 3844 3968 4240 4346 4805 4960 5084 5120 5248 6355 6560 6572 6784 7688 7936 8215 8480 8692 9610 9920 10168 10240 10496 10865 12710 13120 13144 13568 15376 15872 16430 16960 17384 19220 19840 20336 20992 21730 25420 26240 26288 27136 30752 31744 32860 33920 34768 38440 39401 39680 40672 41984 43460 50840 50933 52480 52576 54272 61504 63488 65720 67363 67840 69536 76880 78802 79360 81344 83968 86920 101680 101866 104960 105152 108544 123008 131440 134726 135680 139072 153760 157604 158720 162688 173840 197005 203360 203732 209920 210304 246016 254665 262880 269452 271360 278144 307520 315208 317440 325376 336815 347680 394010 406720 407464 419840 420608 492032 509330 525760 538904 542720 556288 615040 630416 650752 673630 695360 788020 813440 814928 841216 984064 1018660 1051520 1077808 1112576 1230080 1260832 1301504 1347260 1390720 1576040 1626880 1629856 1682432 1968128 2037320 2088253 2103040 2155616 2225152 2460160 2521664 2603008 2694520 2781440 3152080 3253760 3259712 3364864 4074640 4176506 4206080 4311232 4450304 4920320 5043328 5389040 5562880 6304160 6507520 6519424 8149280 8353012 8412160 8622464 9840640 10086656 10441265 10778080 11125760 12608320 13015040 13038848 16298560 16706024 16824320 17244928 20173312 20882530 21556160 22251520 25216640 26077696 32597120 33412048 34489856 40346624 41765060 43112320 50433280 52155392 65194240 66824096 68979712 80693248 83530120 86224640 100866560 104310784 130388480 133648192 137959424 167060240 172449280 201733120 260776960 267296384 334120480 344898560 403466240 521553920 534592768 668240960 689797120 1069185536 1336481920 2138371072 2672963840 4276742144 5345927680 10691855360 21383710720
• Sum of all divisors σ(n): 55334686680
• Sum of proper divisors (its aliquot sum) s(n): 33950975960
• 21383710720 is an abundant number, because the sum of its proper divisors (33950975960) is greater than itself. Its abundance is 12567265240

Bases of 21383710720

• Binary: 10011111010100100011000100000000000₂
• Hexadecimal: 0x4FA918800
• Base-36: 9TNB4SG

Squares and roots of 21383710720

• 21383710720 squared (21383710720²) is 457263084156642918400
• 21383710720 cubed (21383710720³) is 9777981514540667333402165248000
• The square root of 21383710720 is 146231.7021715879
• The cube root of 21383710720 is 2775.6264892907

Scales and comparisons

• 21,383,710,720 seconds is equal to 679 years, 48 weeks, 4 days, 15 hours, 38 minutes, 40 seconds.
• To count from 1 to 21,383,710,720 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 21383710720 cubic inches would be around 231.3 feet tall.

Recreational maths with 21383710720

• 21383710720 backwards is 02701738312
• The number of decimal digits it has is: 11
• The sum of 21383710720's digits is 34
• More coming soon!