21383776440

Names of 21383776440

• Cardinal: 21383776440 can be written as Twenty-one billion, three hundred eighty-three million, seven hundred seventy-six thousand, four hundred forty.

Scientific notation

• Scientific notation: 2.138377644 × 10¹⁰

Factors of 21383776440

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 210

Divisors of 21383776440

• Number of divisors d(n): 768
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 13 15 18 20 24 26 27 30 31 36 39 40 45 52 53 54 60 62 65 72 78 81 90 93 103 104 106 108 117 120 124 130 135 155 156 159 162 180 186 195 206 212 216 234 243 248 260 265 270 279 309 310 312 318 324 351 360 372 390 403 405 412 424 465 468 477 486 515 520 530 540 558 585 618 620 636 648 689 702 744 780 795 806 810 824 837 927 930 936 954 972 1030 1053 1060 1080 1116 1170 1209 1215 1236 1240 1272 1339 1378 1395 1404 1431 1545 1560 1590 1612 1620 1643 1674 1755 1854 1860 1908 1944 2015 2060 2067 2106 2120 2232 2340 2385 2418 2430 2472 2511 2678 2756 2781 2790 2808 2862 3090 3159 3180 3193 3224 3240 3286 3348 3445 3510 3627 3708 3720 3816 4017 4030 4120 4134 4185 4212 4293 4635 4680 4770 4836 4860 4929 5022 5265 5356 5459 5512 5562 5580 5724 6045 6180 6201 6318 6360 6386 6572 6695 6696 6890 7020 7155 7254 7416 7533 8034 8060 8215 8268 8343 8370 8424 8586 9270 9540 9579 9672 9720 9858 10044 10335 10530 10712 10881 10918 11124 11160 11448 12051 12090 12360 12402 12555 12636 12772 12879 13144 13390 13780 13905 14040 14310 14508 14787 15066 15795 15965 16068 16120 16377 16430 16536 16686 16740 17172 18135 18540 18603 19080 19158 19716 20085 20088 20670 21060 21359 21465 21762 21836 22248 24102 24180 24645 24804 25029 25110 25272 25544 25758 26780 27295 27560 27810 28620 28737 29016 29574 30132 31005 31590 31930 32136 32643 32754 32860 33372 33480 34344 36153 36270 37080 37206 37665 38316 39432 40170 41340 41509 41715 42120 42718 42930 43524 43672 44361 47895 48204 48360 49131 49290 49608 50058 50220 51516 53560 54405 54590 55620 55809 57240 57474 59148 60255 60264 62010 63180 63860 64077 64395 65286 65508 65720 66744 70967 72306 72540 73935 74412 75330 76632 80340 81885 82680 83018 83430 85436 85860 86211 87048 88722 93015 95790 96408 97929 98262 98580 100116 100440 103032 106795 108459 108810 109180 111240 111618 114948 118296 120510 124020 124527 125145 126360 127720 128154 128790 130572 131016 133083 141934 143685 144612 145080 147393 147870 148824 150660 160680 163215 163770 166036 166860 167427 169229 170872 171720 172422 177444 180765 186030 191580 192231 195858 196524 197160 200232 207545 212901 213590 216918 217620 218360 221805 223236 229896 241020 245655 248040 249054 250290 256308 257580 258633 261144 266166 279045 283868 287370 289224 294786 295740 301320 320385 325377 326430 327540 332072 333720 334854 338458 344844 354835 354888 361530 372060 373581 383160 384462 391716 393048 399249 415090 425802 427180 431055 433836 435240 442179 443610 446472 482040 489645 491310 498108 500580 507687 512616 515160 517266 532332 542295 558090 567736 574740 576693 589572 591480 622635 638703 640770 650754 652860 655080 665415 669708 676916 689688 709670 723060 736965 744120 747162 768924 775899 783432 798498 830180 837135 846145 851604 854360 862110 867672 884358 887220 961155 979290 982620 996216 1001160 1015374 1034532 1064505 1064664 1084590 1116180 1120743 1149480 1153386 1179144 1245270 1277406 1281540 1293165 1301508 1305720 1326537 1330830 1339416 1353832 1419340 1446120 1473930 1494324 1523061 1537848 1551798 1596996 1626885 1660360 1674270 1692290 1703208 1724220 1730079 1768716 1774440 1867905 1916109 1922310 1958580 1965240 1996245 2030748 2069064 2129010 2169180 2199977 2210895 2232360 2241486 2306772 2490540 2538435 2554812 2563080 2586330 2603016 2653074 2661660 2838680 2883465 2947860 2988648 3046122 3103596 3193515 3193992 3253770 3348540 3362229 3384580 3448440 3460158 3537432 3735810 3832218 3844620 3879495 3917160 3992490 4061496 4258020 4338360 4399954 4421790 4482972 4569183 4613544 4981080 5076870 5109624 5172660 5190237 5306148 5323320 5603715 5748327 5766930 5895720 6092244 6207192 6387030 6507540 6599931 6632685 6697080 6724458 6769160 6920316 7471620 7615305 7664436 7689240 7758990 7984980 8516040 8650395 8799908 8843580 8965944 9138366 9580545 10086687 10153740 10345320 10380474 10612296 10999885 11207430 11496654 11533860 12184488 12774060 13015080 13199862 13265370 13448916 13707549 13840632 14943240 15230610 15328872 15517980 15969960 16811145 17244981 17300790 17599816 17687160 18276732 19161090 19799793 20173374 20307480 20760948 21999770 22414860 22845915 22993308 23067720 25548120 25951185 26399724 26530740 26897832 27415098 28741635 30461220 31035960 32999655 33622290 34489962 34601580 36553464 38322180 39599586 40346748 41122647 41521896 43999540 44829720 45691830 45986616 50433435 51902370 52799448 53061480 54830196 57483270 59399379 60922440 65999310 67244580 68537745 68979924 69203160 76644360 79199172 80693496 82245294 86224905 87999080 91383660 98998965 100866870 103804740 109660392 114966540 118798758 131998620 134489160 137075490 137959848 158398344 164490588 172449810 178198137 182767320 197997930 201733740 205613235 207609480 229933080 237597516 263997240 274150980 296996895 328981176 344899620 356396274 395995860 403467480 411226470 475195032 534594411 548301960 593993790 689799240 712792548 791991720 822452940 890990685 1069188822 1187987580 1425585096 1644905880 1781981370 2138377644 2375975160 2672972055 3563962740 4276755288 5345944110 7127925480 10691888220 21383776440
• Sum of all divisors σ(n): 82423111680
• Sum of proper divisors (its aliquot sum) s(n): 61039335240
• 21383776440 is an abundant number, because the sum of its proper divisors (61039335240) is greater than itself. Its abundance is 39655558800

Bases of 21383776440

• Binary: 10011111010100100101000100010111000₂
• Hexadecimal: 0x4FA9288B8
• Base-36: 9TNCJI0

Squares and roots of 21383776440

• 21383776440 squared (21383776440²) is 457265894835899073600
• 21383776440 cubed (21383776440³) is 9778071668807416276265505984000
• The square root of 21383776440 is 146231.9268832905
• The cube root of 21383776440 is 2775.6293327945

Scales and comparisons

• 21,383,776,440 seconds is equal to 679 years, 48 weeks, 5 days, 9 hours, 54 minutes.
• To count from 1 to 21,383,776,440 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 21383776440 cubic inches would be around 231.3 feet tall.

Recreational maths with 21383776440

• 21383776440 backwards is 04467738312
• 21383776440 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21383776440's digits is 45
• More coming soon!