21918806722800

Names of 21918806722800

• Cardinal: 21918806722800 can be written as Twenty-one trillion, nine hundred eighteen billion, eight hundred six million, seven hundred twenty-two thousand, eight hundred.

Scientific notation

• Scientific notation: 2.19188067228 × 10¹³

Factors of 21918806722800

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 252

Divisors of 21918806722800

• Number of divisors d(n): 720
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 13 15 16 18 20 24 25 26 27 30 36 39 40 45 48 50 52 54 60 65 72 75 78 80 90 100 104 108 117 120 130 135 144 150 156 169 180 195 200 208 216 225 229 234 240 260 270 300 312 325 338 351 360 390 400 432 450 458 468 507 520 540 585 600 624 650 675 676 687 702 720 780 845 900 916 936 975 1014 1040 1080 1145 1170 1200 1300 1350 1352 1374 1404 1521 1560 1690 1755 1800 1832 1872 1950 2028 2061 2160 2290 2340 2535 2600 2700 2704 2748 2808 2925 2977 3042 3120 3380 3435 3510 3600 3664 3900 4056 4122 4225 4563 4580 4680 5070 5200 5400 5496 5616 5725 5850 5954 6084 6183 6760 6870 7020 7605 7800 8112 8244 8450 8775 8931 9126 9160 9360 10140 10305 10800 10992 11450 11700 11908 12168 12366 12675 13520 13740 14040 14885 15210 15600 16488 16900 17175 17550 17862 18252 18320 20280 20610 22815 22900 23400 23816 24336 24732 25350 26793 27480 28080 29770 30420 30915 32976 33800 34350 35100 35724 36504 38025 38701 40560 41220 44655 45630 45800 46800 47632 49464 50700 51525 52441 53586 54960 59540 60840 61830 67600 68700 70200 71448 73008 74425 76050 77402 80379 82440 89310 91260 91600 98928 101400 103050 104882 107172 114075 116103 119080 121680 123660 133965 137400 140400 142896 148850 152100 154575 154804 157323 160758 164880 178620 182520 193505 202800 206100 209764 214344 223275 228150 232206 238160 247320 262205 267930 274800 297700 304200 309150 309608 314646 321516 348309 357240 365040 387010 401895 412200 419528 428688 446550 456300 464412 471969 494640 524410 535860 580515 595400 608400 618300 619216 629292 643032 669825 681733 696618 714480 774020 786615 803790 824400 839056 893100 912600 928824 943938 967525 1044927 1048820 1071720 1161030 1190800 1236600 1258584 1286064 1311025 1339650 1363466 1393236 1415907 1548040 1573230 1607580 1741545 1786200 1825200 1857648 1887876 1935050 2009475 2045199 2089854 2097640 2143440 2322060 2359845 2473200 2517168 2622050 2679300 2726932 2786472 2831814 2902575 3096080 3146460 3215160 3408665 3483090 3572400 3775752 3870100 3933075 4018950 4090398 4179708 4195280 4644120 4719690 5224635 5244100 5358600 5453864 5572944 5663628 5805150 6135597 6292920 6430320 6817330 6966180 7079535 7551504 7740200 7866150 8037900 8180796 8359416 8707725 8862529 9288240 9439380 10225995 10449270 10488200 10717200 10907728 11327256 11610300 11799225 12008989 12271194 12585840 13634660 13932360 14159070 15480400 15732300 16075800 16361592 16718832 17043325 17415450 17725058 18406791 18878760 20451990 20898540 20976400 22654512 23220600 23598450 24017978 24542388 26123175 26587587 27269320 27864720 28318140 30677985 31464600 32151600 32723184 34086650 34830900 35397675 35450116 36026967 36813582 37757520 40903980 41797080 44312645 46441200 47196900 48035956 49084776 51129975 52246350 53175174 54538640 56636280 60044945 61355970 62929200 68173300 69661800 70795350 70900232 72053934 73627164 79762761 81807960 83594160 88625290 92033955 94393800 96071912 98169552 102259950 104492700 106350348 108080901 113272560 120089890 122711940 132937935 136346600 139323600 141590700 141800464 144107868 147254328 153389925 156116857 159525522 163615920 177250580 180134835 184067910 188787600 192143824 204519900 208985400 212700696 216161802 221563225 239288283 240179780 245423880 265875870 272693200 283181400 288215736 294508656 300224725 306779850 312233714 319051044 324242703 354501160 360269670 368135820 398813805 409039800 417970800 425401392 432323604 443126450 460169775 468350571 478576566 480359560 490847760 531751740 540404505 566362800 576431472 600449450 613559700 624467428 638102088 648485406 664689675 709002320 720539340 736271640 780584285 797627610 818079600 864647208 886252900 900674175 920339550 936701142 957153132 960719120 1063503480 1080809010 1196441415 1200898900 1227119400 1248934856 1276204176 1296970812 1329379350 1405051713 1441078680 1472543280 1561168570 1595255220 1621213515 1729294416 1772505800 1801348350 1840679100 1873402284 1914306264 1994069025 2029519141 2127006960 2161618020 2341752855 2392882830 2401797800 2454238800 2497869712 2593941624 2658758700 2702022525 2810103426 2882157360 3122337140 3190510440 3242427030 3545011600 3602696700 3681358200 3746804568 3828612528 3902921425 3988138050 4059038282 4215155139 4323236040 4683505710 4785765660 4803595600 5187883248 5317517400 5404045050 5620206852 5982207075 6088557423 6244674280 6381020880 6484854060 7025258565 7205393400 7362716400 7493609136 7805842850 7976276100 8106067575 8118076564 8430310278 8646472080 9367011420 9571531320 10147595705 10635034800 10808090100 11240413704 11708764275 11964414150 12177114846 12489348560 12969708120 14050517130 14410786800 15611685700 15952552200 16212135150 16236153128 16860620556 18265672269 18734022840 19143062640 20295191410 21075775695 21616180200 22480827408 23417528550 23928828300 24354229692 25939416240 28101034260 30442787115 31223371400 31905104400 32424270300 32472306256 33721241112 35126292825 36531344538 37468045680 40590382820 42151551390 43232360400 46835057100 47857656600 48708459384 50737978525 54797016807 56202068520 60885574230 62446742800 64848540600 67442482224 70252585650 73062689076 81180765640 84303102780 91328361345 93670114200 95715313200 97416918768 101475957050 105378878475 109594033614 112404137040 121771148460 129697081200 140505171300 146125378152 152213935575 162361531280 168606205560 182656722690 187340228400 202951914100 210757756950 219188067228 243542296920 273985084035 281010342600 292250756304 304427871150 337212411120 365313445380 405903828200 421515513900 438376134456 456641806725 487084593840 547970168070 562020685200 608855742300 730626890760 811807656400 843031027800 876752268912 913283613450 1095940336140 1217711484600 1369925420175 1461253781520 1686062055600 1826567226900 2191880672280 2435422969200 2739850840350 3653134453800 4383761344560 5479701680700 7306268907600 10959403361400 21918806722800
• Sum of all divisors σ(n): 84847988503200
• Sum of proper divisors (its aliquot sum) s(n): 62929181780400
• 21918806722800 is an abundant number, because the sum of its proper divisors (62929181780400) is greater than itself. Its abundance is 41010375057600

Bases of 21918806722800

• Binary: 100111110111101011110101100000100100011110000₂
• Hexadecimal: 0x13EF5EB048F0
• Base-36: 7RPCZLGC0

Squares and roots of 21918806722800

• 21918806722800 squared (21918806722800²) is 480434088151462476039840000
• 21918806722800 cubed (21918806722800³) is 10530541921236563544473978912636352000000
• The square root of 21918806722800 is 4681752.5268642725
• The cube root of 21918806722800 is 27985.8800928511

Scales and comparisons

• 21,918,806,722,800 seconds is equal to 696,950 years, 13 weeks, 1 day, 15 hours.
• To count from 1 to 21,918,806,722,800 would take you about one million, seven hundred forty-two thousand, three hundred seventy-five 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 21918806722800 cubic inches would be around 2332.2 feet tall.

Recreational maths with 21918806722800

• 21918806722800 backwards is 00822760881912
• 21918806722800 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 21918806722800's digits is 54
• More coming soon!