21668035721977008

Names of 21668035721977008

• Cardinal: 21668035721977008 can be written as Twenty-one quadrillion, six hundred sixty-eight trillion, thirty-five billion, seven hundred twenty-one million, nine hundred seventy-seven thousand and eight.

Scientific notation

• Scientific notation: 2.1668035721977008 × 10¹⁶

Factors of 21668035721977008

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 460468891

Divisors of 21668035721977008

• Number of divisors d(n): 720
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 13 14 16 18 19 21 24 26 27 28 36 38 39 42 48 49 52 54 56 57 63 72 76 78 81 84 91 98 104 108 112 114 117 126 133 144 147 152 156 162 168 171 182 189 196 208 216 228 234 243 247 252 266 273 294 304 312 324 336 342 351 364 378 392 399 432 441 456 468 486 494 504 513 532 546 567 588 624 637 648 684 702 728 741 756 784 798 819 882 912 931 936 972 988 1008 1026 1053 1064 1092 1134 1176 1197 1274 1296 1323 1368 1404 1456 1482 1512 1539 1596 1638 1701 1729 1764 1862 1872 1911 1944 1976 2052 2106 2128 2184 2223 2268 2352 2394 2457 2548 2646 2736 2793 2808 2964 3024 3078 3159 3192 3276 3402 3458 3528 3591 3724 3822 3888 3952 3969 4104 4212 4368 4446 4536 4617 4788 4914 5096 5187 5292 5586 5616 5733 5928 6156 6318 6384 6552 6669 6804 6916 7056 7182 7371 7448 7644 7938 8208 8379 8424 8892 9072 9234 9576 9828 10192 10374 10584 10773 11172 11466 11856 11907 12103 12312 12636 13104 13338 13608 13832 14364 14742 14896 15288 15561 15876 16758 16848 17199 17784 18468 19152 19656 20007 20748 21168 21546 22113 22344 22932 23814 24206 24624 25137 25272 26676 27216 27664 28728 29484 30576 31122 31752 32319 33516 34398 35568 36309 36936 39312 40014 41496 43092 44226 44688 45864 46683 47628 48412 50274 50544 51597 53352 57456 58968 60021 62244 63504 64638 67032 68796 72618 73872 75411 80028 82992 86184 88452 91728 93366 95256 96824 100548 103194 106704 108927 117936 120042 124488 129276 134064 137592 140049 145236 150822 154791 160056 172368 176904 186732 190512 193648 201096 206388 217854 226233 240084 248976 258552 275184 280098 290472 301644 309582 320112 326781 353808 373464 402192 412776 420147 435708 452466 480168 517104 560196 580944 603288 619164 653562 746928 825552 840294 871416 904932 960336 980343 1120392 1206576 1238328 1307124 1680588 1742832 1809864 1960686 2240784 2476656 2614248 2941029 3361176 3619728 3921372 5228496 5882058 6722352 7842744 11764116 15685488 23528232 47056464 460468847 920937694 1381406541 1841875388 2762813082 3223281929 3683750776 4144219623 5525626164 5986095011 6446563858 7367501552 8288439246 8748908093 9669845787 11051252328 11972190022 12432658869 12893127716 16576878492 17497816186 17958285033 19339691574 22102504656 22562973503 23944380044 24865317738 25786255432 26246724279 29009537361 33153756984 34995632372 35916570066 37297976607 38679383148 41902665077 45125947006 47888760088 49730635476 51572510864 52493448558 53874855099 58019074722 61242356651 66307513968 67688920509 69991264744 71833140132 74595953214 77358766296 78740172837 83805330154 87028612083 90251894012 95777520176 99461270952 104986897116 107749710198 111893929821 113735805209 116038149444 122484713302 125707995231 135377841018 139982529488 143666280264 149191906428 154717532592 157480345674 161624565297 167610660308 174057224166 180503788024 183727069953 198922541904 203066761527 209973794232 215499420396 223787859642 227471610418 232076298888 236220518511 244969426604 251415990462 261085836249 270755682036 287332560528 293318655539 298383812856 314960691348 323249130594 335221320616 341207415627 348114448332 361007576048 367454139906 377123985693 406133523054 419947588464 428696496557 430998840792 447575719284 454943220836 464152597776 472441037022 484873695891 489938853208 502831980924 522171672498 541511364072 551181209859 586637311078 596767625712 609200284581 629921382696 646498261188 670442641232 682414831254 696228896664 708661555533 734908279812 754247971386 783257508747 796150636463 812267046108 857392993114 861997681584 879955966617 895151438568 909886441672 944882074044 969747391782 979877706416 1005663961848 1023622246881 1044343344996 1083022728144 1102362419718 1131371957079 1173274622156 1218400569162 1259842765392 1286089489671 1292996522376 1364829662508 1392457793328 1417323111066 1454621087673 1469816559624 1508495942772 1566515017494 1592301272926 1624534092216 1653543629577 1714785986228 1759911933234 1790302877136 1819772883344 1827600853743 1889764148088 1939494783564 2011327923696 2047244493762 2088686689992 2125984666599 2204724839436 2262743914158 2346549244312 2388451909389 2436801138324 2572178979342 2585993044752 2639867899851 2729659325016 2834646222132 2909242175346 2939633119248 3016991885544 3070866740643 3133030034988 3184602545852 3249068184432 3307087259154 3394115871237 3429571972456 3519823866468 3655201707486 3779528296176 3858268469013 3878989567128 4094488987524 4177373379984 4251969333198 4409449678872 4525487828316 4693098488624 4776903818778 4873602276648 4960630888731 5144357958684 5279735799702 5459318650032 5482802561229 5573054455241 5669292444264 5818484350692 6033983771088 6141733481286 6266060069976 6369205091704 6614174518308 6788231742474 6859143944912 7039647732936 7165355728167 7310403414972 7716536938026 7757979134256 7919603699553 8188977975048 8503938666396 8818899357744 9050975656632 9212600221929 9553807637556 9747204553296 9921261777462 10182347613711 10288715917368 10559471599404 10965605122458 11146108910482 11338584888528 11574805407039 11636968701384 12283466962572 12532120139952 12738410183408 13228349036616 13576463484948 14079295465872 14330711456334 14620806829944 14881892666193 15433073876052 15839207399106 16377955950096 16719163365723 17007877332792 18101951313264 18425200443858 19107615275112 19842523554924 20364695227422 20577431834736 21118943198808 21496067184501 21931210244916 22292217820964 23149610814078 23273937402768 23758811098659 24566933925144 26456698073232 27152926969896 27637800665787 28661422912668 29241613659888 29763785332386 30866147752104 31678414798212 33438326731446 34015754665584 34724416221117 36850400887716 38215230550224 39685047109848 40729390454844 42237886397616 42992134369002 43862420489832 44584435641928 46299221628156 47517622197318 49133867850288 50157490097169 54305853939792 55275601331574 57322845825336 59527570664772 61732295504208 63356829596424 64488201553503 66876653462892 69448832442234 71276433295977 73700801775432 79370094219696 81458780909688 85984268738004 87724840979664 89168871283856 92598443256312 95035244394636 100314980194338 104173248663351 110551202663148 114645691650672 119055141329544 126713659192848 128976403107006 133753306925784 138897664884468 142552866591954 147401603550864 150472470291507 162917561819376 171968537476008 185196886512624 190070488789272 193464604660509 200629960388676 208346497326702 221102405326296 238110282659088 257952806214012 267506613851568 277795329768936 285105733183908 300944940583014 343937074952016 380140977578544 386929209321018 401259920777352 416692994653404 442204810652592 451417410874521 515905612428024 555590659537872 570211466367816 601889881166028 773858418642036 802519841554704 833385989306808 902834821749042 1031811224856048 1140422932735632 1203779762332056 1354252232623563 1547716837284072 1666771978613616 1805669643498084 2407559524664112 2708504465247126 3095433674568144 3611339286996168 5417008930494252 7222678573992336 10834017860988504 21668035721977008
• Sum of all divisors σ(n): 82927050474078720
• Sum of proper divisors (its aliquot sum) s(n): 61259014752101712
• 21668035721977008 is an abundant number, because the sum of its proper divisors (61259014752101712) is greater than itself. Its abundance is 39590979030124704

Bases of 21668035721977008

• Binary: 1001100111110101111011010110100001100000101110010110000₂
• Hexadecimal: 0x4CFAF6B4305CB0
• Base-36: 5XCOE6WRF00

Squares and roots of 21668035721977008

• 21668035721977008 squared (21668035721977008²) is 469503772048871678329360080632064
• 21668035721977008 cubed (21668035721977008³) is 10173224504357901825107719850908214443616315584512
• The square root of 21668035721977008 is 147200664.8149967019
• The cube root of 21668035721977008 is 278787.4252609395

Scales and comparisons

• 21,668,035,721,977,008 seconds is equal to 688,976,512 years, 16 weeks, 5 days, 20 hours, 16 minutes, 48 seconds.
• To count from 1 to 21,668,035,721,977,008 would take you about two billion, sixty-six million, nine hundred twenty-nine thousand, five hundred thirty-six 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 21668035721977008 cubic inches would be around 23232.3 feet tall.

Recreational maths with 21668035721977008

• 21668035721977008 backwards is 80077912753086612
• 21668035721977008 is a Harshad number.
• The number of decimal digits it has is: 17
• The sum of 21668035721977008's digits is 72
• More coming soon!