21408382380

Names of 21408382380

• Cardinal: 21408382380 can be written as Twenty-one billion, four hundred eight million, three hundred eighty-two thousand, three hundred eighty.

Scientific notation

• Scientific notation: 2.140838238 × 10¹⁰

Factors of 21408382380

• Number of distinct prime factors ω(n): 8
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 293

Divisors of 21408382380

• Number of divisors d(n): 576
• Complete list of divisors:
  1 2 3 4 5 6 7 10 11 12 14 15 20 21 22 28 30 31 33 35 42 44 55 60 62 66 70 77 84 93 105 107 110 121 124 127 132 140 154 155 165 186 210 214 217 220 231 242 254 308 310 321 330 341 363 372 381 385 420 428 434 462 465 484 508 535 605 620 635 642 651 660 682 726 749 762 770 847 868 889 924 930 1023 1070 1085 1155 1177 1210 1270 1284 1302 1364 1397 1452 1498 1524 1540 1605 1694 1705 1778 1815 1860 1905 2046 2140 2170 2247 2310 2354 2387 2420 2540 2541 2604 2667 2794 2996 3210 3255 3317 3388 3410 3531 3556 3630 3745 3751 3810 3937 4092 4191 4235 4340 4445 4494 4620 4708 4774 5082 5115 5334 5588 5885 6420 6510 6634 6820 6985 7062 7161 7260 7490 7502 7620 7874 8239 8382 8470 8890 8988 9548 9779 9951 10164 10230 10668 11235 11253 11770 11811 11935 12705 12947 13020 13268 13335 13589 13970 14124 14322 14980 15004 15367 15748 16478 16585 16764 16940 17655 17780 18755 19558 19685 19902 20460 20955 22470 22506 23219 23540 23622 23870 24717 25410 25894 26257 26670 27178 27559 27940 28644 29337 30734 32956 33170 35310 35805 36487 37510 38841 39116 39370 39804 40767 41195 41910 43307 44940 45012 46101 46438 47244 47740 48895 49434 49755 50820 51788 52514 53340 54356 55118 56265 58674 59055 61468 64735 66340 67945 69657 70620 71610 72974 75020 76835 77682 78740 78771 81534 82390 82677 83820 86614 90629 92202 92876 95123 97790 98868 99510 105028 107569 109461 110236 112530 116095 117348 118110 123585 129470 129921 131285 135890 137795 139314 143220 145948 146685 149479 153670 155364 157542 163068 164780 165354 173228 181258 182435 184404 190246 194205 195580 199020 203835 215138 216535 218922 225060 230505 232190 236220 247170 255409 258940 259842 262570 271780 271887 275590 278628 285369 293370 298958 303149 307340 315084 322707 330708 348285 362516 364870 380492 388410 393855 401357 407670 413385 421259 430276 433070 437844 448437 453145 461010 464380 475615 476377 494340 510818 519684 525140 537845 543774 547305 551180 570738 586740 597916 606298 645414 649605 696570 729740 747395 766227 776820 787710 802714 815340 826770 842518 866140 896874 906290 909447 922020 951230 952754 1021636 1046353 1075690 1087548 1094610 1141476 1204071 1212596 1263777 1277045 1290828 1299210 1359435 1393140 1426845 1429131 1494790 1515745 1532454 1575420 1605428 1613535 1644269 1653540 1685036 1793748 1812580 1818894 1902460 1905508 2006785 2092706 2106295 2151380 2189220 2242185 2381885 2408142 2527554 2554090 2598420 2718870 2809499 2853690 2858262 2948813 2989580 3031490 3064908 3139059 3227070 3288538 3334639 3637788 3831135 4013570 4185412 4212590 4484370 4547235 4633849 4763770 4816284 4932807 5055108 5108180 5231765 5437740 5618998 5707380 5716524 5897626 6020355 6062980 6278118 6318885 6454140 6577076 6669278 7145655 7662270 8027140 8221345 8425180 8428497 8846439 8968740 9094470 9267698 9527540 9865614 10003917 10463530 11237996 11509883 11795252 12040710 12556236 12637770 13338556 13901547 14047495 14291310 14744065 15324540 15695295 16442690 16673195 16856994 17692878 18188940 18535396 19731228 20007834 20927060 23019766 23169245 24081420 24664035 25275540 27803094 28094990 28582620 29488130 31390590 32436943 32885380 33346390 33713988 34529649 35385756 40015668 42142485 44232195 46039532 46338490 49328070 50019585 50972339 55606188 56189980 57549415 58976260 62781180 64873886 66692780 69059298 69507735 84284970 88464390 92676980 97310829 98656140 100039170 101944678 115098830 129747772 138118596 139015470 152917017 162184715 168569940 172648245 176928780 194621658 200078340 203889356 230197660 254861695 278030940 305834034 324369430 345296490 356806373 389243316 486554145 509723390 611668068 648738860 690592980 713612746 764585085 973108290 1019446780 1070419119 1427225492 1529170170 1784031865 1946216580 2140838238 3058340340 3568063730 4281676476 5352095595 7136127460 10704191190 21408382380
• Sum of all divisors σ(n): 79074164736
• Sum of proper divisors (its aliquot sum) s(n): 57665782356
• 21408382380 is an abundant number, because the sum of its proper divisors (57665782356) is greater than itself. Its abundance is 36257399976

Bases of 21408382380

• Binary: 10011111100000010011111110110101100₂
• Hexadecimal: 0x4FC09FDAC
• Base-36: 9U1ZXKC

Squares and roots of 21408382380

• 21408382380 squared (21408382380²) is 458318836128294464400
• 21408382380 cubed (21408382380³) is 9811864895791086631112497272000
• The square root of 21408382380 is 146316.0359632531
• The cube root of 21408382380 is 2776.6935475231

Scales and comparisons

• 21,408,382,380 seconds is equal to 680 years, 37 weeks, 3 days, 4 hours, 53 minutes.
• To count from 1 to 21,408,382,380 would take you about one thousand, three hundred sixty-one 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 21408382380 cubic inches would be around 231.4 feet tall.

Recreational maths with 21408382380

• 21408382380 backwards is 08328380412
• The number of decimal digits it has is: 11
• The sum of 21408382380's digits is 39
• More coming soon!