21909701918720

Names of 21909701918720

• Cardinal: 21909701918720 can be written as Twenty-one trillion, nine hundred nine billion, seven hundred one million, nine hundred eighteen thousand, seven hundred twenty.

Scientific notation

• Scientific notation: 2.190970191872 × 10¹³

Factors of 21909701918720

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 34
• Sum of prime factors: 78

Divisors of 21909701918720

• Number of divisors d(n): 496
• Complete list of divisors:
  1 2 4 5 7 8 10 11 14 16 20 22 28 32 35 40 44 53 55 56 64 70 77 80 88 106 110 112 128 140 154 160 176 212 220 224 256 265 280 308 320 352 371 385 424 440 448 512 530 560 583 616 640 704 742 770 848 880 896 1024 1060 1120 1166 1232 1280 1408 1484 1540 1696 1760 1792 1855 2048 2120 2240 2332 2464 2560 2816 2915 2968 3080 3392 3520 3584 3710 4081 4096 4240 4480 4664 4928 5120 5632 5830 5936 6160 6784 7040 7168 7420 8162 8192 8480 8960 9328 9856 10240 11264 11660 11872 12320 13568 14080 14336 14840 16324 16384 16960 17920 18656 19712 20405 20480 22528 23320 23744 24640 27136 28160 28672 29680 32648 32768 33920 35840 37312 39424 40810 40960 45056 46640 47488 49280 54272 56320 57344 59360 65296 65536 67840 71680 74624 78848 81620 81920 90112 93280 94976 98560 108544 112640 114688 118720 130592 131072 135680 143360 149248 157696 163240 163840 180224 186560 189952 197120 217088 225280 229376 237440 261184 262144 271360 286720 298496 315392 326480 327680 360448 373120 379904 394240 434176 450560 458752 474880 522368 524288 542720 573440 596992 630784 652960 655360 720896 746240 759808 788480 868352 901120 917504 949760 1044736 1048576 1085440 1146880 1193984 1261568 1305920 1310720 1441792 1492480 1519616 1576960 1736704 1802240 1835008 1899520 2089472 2097152 2170880 2293760 2387968 2523136 2611840 2621440 2883584 2984960 3039232 3153920 3473408 3604480 3670016 3799040 4178944 4194304 4341760 4587520 4775936 5046272 5223680 5242880 5767168 5969920 6078464 6307840 6946816 7208960 7340032 7598080 8357888 8388608 8683520 9175040 9551872 10092544 10447360 10485760 11534336 11939840 12156928 12615680 13893632 14417920 14680064 15196160 16715776 16777216 17367040 18350080 19103744 20185088 20894720 20971520 23068672 23879680 24313856 25231360 27787264 28835840 29360128 30392320 33431552 33554432 34734080 36700160 38207488 40370176 41789440 41943040 46137344 47759360 48627712 50462720 55574528 57671680 58720256 60784640 66863104 67108864 69468160 73400320 76414976 80740352 83578880 83886080 92274688 95518720 97255424 100925440 111149056 115343360 117440512 121569280 133726208 134217728 138936320 146800640 152829952 161480704 167157760 167772160 184549376 191037440 194510848 201850880 222298112 230686720 234881024 243138560 267452416 268435456 277872640 293601280 305659904 322961408 334315520 335544320 369098752 382074880 389021696 403701760 444596224 461373440 469762048 486277120 534904832 536870912 555745280 587202560 611319808 645922816 668631040 671088640 738197504 764149760 778043392 807403520 889192448 922746880 939524096 972554240 1069809664 1073741824 1111490560 1174405120 1222639616 1291845632 1337262080 1342177280 1476395008 1528299520 1556086784 1614807040 1778384896 1845493760 1879048192 1945108480 2139619328 2222981120 2348810240 2445279232 2583691264 2674524160 2684354560 2952790016 3056599040 3112173568 3229614080 3556769792 3690987520 3758096384 3890216960 4279238656 4445962240 4697620480 4890558464 5167382528 5349048320 5368709120 5905580032 6113198080 6224347136 6459228160 7113539584 7381975040 7516192768 7780433920 8558477312 8891924480 9395240960 9781116928 10334765056 10698096640 11811160064 12226396160 12448694272 12918456320 14227079168 14763950080 15560867840 17116954624 17783848960 18790481920 19562233856 20669530112 21396193280 24452792320 24897388544 25836912640 28454158336 29527900160 31121735680 34233909248 35567697920 37580963840 39124467712 41339060224 42792386560 48905584640 49794777088 51673825280 56908316672 59055800320 62243471360 68467818496 71135395840 78248935424 82678120448 85584773120 97811169280 99589554176 103347650560 124486942720 136935636992 142270791680 156497870848 171169546240 195622338560 199179108352 206695301120 248973885440 273871273984 284541583360 312995741696 342339092480 391244677120 398358216704 413390602240 497947770880 547742547968 625991483392 684678184960 782489354240 995895541760 1095485095936 1369356369920 1564978708480 1991791083520 2190970191872 2738712739840 3129957416960 4381940383744 5477425479680 10954850959360 21909701918720
• Sum of all divisors σ(n): 66795331356288
• Sum of proper divisors (its aliquot sum) s(n): 44885629437568
• 21909701918720 is an abundant number, because the sum of its proper divisors (44885629437568) is greater than itself. Its abundance is 22975927518848

Bases of 21909701918720

• Binary: 100111110110101000000000000000000000000000000₂
• Hexadecimal: 0x13ED40000000
• Base-36: 7RL6ETWJK

Squares and roots of 21909701918720

• 21909701918720 squared (21909701918720²) is 480035038167162849486438400
• 21909701918720 cubed (21909701918720³) is 10517424596783916315491721979099086848000
• The square root of 21909701918720 is 4680780.0545122819
• The cube root of 21909701918720 is 27982.0045588145

Scales and comparisons

• 21,909,701,918,720 seconds is equal to 696,660 years, 38 weeks, 6 days, 22 hours, 45 minutes, 20 seconds.
• To count from 1 to 21,909,701,918,720 would take you about one million, seven hundred forty-one thousand, six hundred fifty-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 21909701918720 cubic inches would be around 2331.8 feet tall.

Recreational maths with 21909701918720

• 21909701918720 backwards is 02781910790912
• 21909701918720 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 21909701918720's digits is 56
• More coming soon!