21298736178339840

Names of 21298736178339840

• Cardinal: 21298736178339840 can be written as Twenty-one quadrillion, two hundred ninety-eight trillion, seven hundred thirty-six billion, one hundred seventy-eight million, three hundred thirty-nine thousand, eight hundred forty.

Scientific notation

• Scientific notation: 2.129873617833984 × 10¹⁶

Factors of 21298736178339840

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 18
• Sum of prime factors: 5252410892

Divisors of 21298736178339840

• Number of divisors d(n): 336
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 11 12 15 16 18 20 22 24 30 32 33 36 40 44 45 48 55 60 64 66 72 80 88 90 96 99 110 120 128 132 144 160 165 176 180 192 198 220 240 256 264 288 320 330 352 360 384 396 440 480 495 512 528 576 640 660 704 720 768 792 880 960 990 1024 1056 1152 1280 1320 1408 1440 1536 1584 1760 1920 1980 2048 2112 2304 2560 2640 2816 2880 3072 3168 3520 3840 3960 4096 4224 4608 5120 5280 5632 5760 6144 6336 7040 7680 7920 8192 8448 9216 10240 10560 11264 11520 12288 12672 14080 15360 15840 16896 18432 20480 21120 22528 23040 24576 25344 28160 30720 31680 33792 36864 40960 42240 45056 46080 50688 56320 61440 63360 67584 73728 84480 90112 92160 101376 112640 122880 126720 135168 168960 184320 202752 225280 253440 270336 337920 368640 405504 450560 506880 675840 811008 1013760 1351680 2027520 4055040 5252410871 10504821742 15757232613 21009643484 26262054355 31514465226 42019286968 47271697839 52524108710 57776519581 63028930452 78786163065 84038573936 94543395678 105048217420 115553039162 126057860904 157572326130 168077147872 173329558743 189086791356 210096434840 231106078324 236358489195 252115721808 288882597905 315144652260 336154295744 346659117486 378173582712 420192869680 462212156648 472716978390 504231443616 519988676229 577765195810 630289304520 672308591488 693318234972 756347165424 840385739360 866647793715 924424313296 945433956780 1008462887232 1039977352458 1155530391620 1260578609040 1344617182976 1386636469944 1512694330848 1680771478720 1733295587430 1848848626592 1890867913560 2016925774464 2079954704916 2311060783240 2521157218080 2599943381145 2689234365952 2773272939888 3025388661696 3361542957440 3466591174860 3697697253184 3781735827120 4033851548928 4159909409832 4622121566480 5042314436160 5199886762290 5378468731904 5546545879776 6050777323392 6723085914880 6933182349720 7395394506368 7563471654240 8067703097856 8319818819664 9244243132960 10084628872320 10399773524580 10756937463808 11093091759552 12101554646784 13446171829760 13866364699440 14790789012736 15126943308480 16135406195712 16639637639328 18488486265920 20169257744640 20799547049160 21513874927616 22186183519104 24203109293568 26892343659520 27732729398880 29581578025472 30253886616960 32270812391424 33279275278656 36976972531840 40338515489280 41599094098320 43027749855232 44372367038208 48406218587136 53784687319040 55465458797760 59163156050944 60507773233920 64541624782848 66558550557312 73953945063680 80677030978560 83198188196640 88744734076416 96812437174272 107569374638080 110930917595520 118326312101888 121015546467840 129083249565696 133117101114624 147907890127360 161354061957120 166396376393280 177489468152832 193624874348544 215138749276160 221861835191040 236652624203776 242031092935680 266234202229248 295815780254720 322708123914240 332792752786560 354978936305664 387249748697088 443723670382080 473305248407552 484062185871360 532468404458496 591631560509440 645416247828480 665585505573120 709957872611328 887447340764160 968124371742720 1064936808916992 1183263121018880 1331171011146240 1419915745222656 1774894681528320 1936248743485440 2129873617833984 2366526242037760 2662342022292480 3549789363056640 4259747235667968 5324684044584960 7099578726113280 10649368089169920 21298736178339840
• Sum of all divisors σ(n): 80543031487753536
• Sum of proper divisors (its aliquot sum) s(n): 59244295309413696
• 21298736178339840 is an abundant number, because the sum of its proper divisors (59244295309413696) is greater than itself. Its abundance is 37945559131073856

Bases of 21298736178339840

• Binary: 1001011101010110001011001110100000100110010000000000000₂
• Hexadecimal: 0x4BAB1674132000
• Base-36: 5TPRSBNIF40

Squares and roots of 21298736178339840

• 21298736178339840 squared (21298736178339840²) is 453636162794522372689578531225600
• 21298736178339840 cubed (21298736178339840³) is 9661876952314954952998015909721615767808507904000
• The square root of 21298736178339840 is 145940865.3473722555
• The cube root of 21298736178339840 is 277194.5015727887

Scales and comparisons

• 21,298,736,178,339,840 seconds is equal to 677,233,929 years, 8 weeks, 6 hours, 24 minutes.
• To count from 1 to 21,298,736,178,339,840 would take you about two billion, thirty-one million, seven hundred one thousand, seven hundred eighty-seven 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 21298736178339840 cubic inches would be around 23099.5 feet tall.

Recreational maths with 21298736178339840

• 21298736178339840 backwards is 04893387163789212
• The number of decimal digits it has is: 17
• The sum of 21298736178339840's digits is 81
• More coming soon!