21078220800

Names of 21078220800

• Cardinal: 21078220800 can be written as Twenty-one billion, seventy-eight million, two hundred twenty thousand, eight hundred.

Scientific notation

• Scientific notation: 2.10782208 × 10¹⁰

Factors of 21078220800

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 20
• Sum of prime factors: 59

Divisors of 21078220800

• Number of divisors d(n): 1008
• Complete list of divisors:
  1 2 3 4 5 6 7 8 10 12 13 14 15 16 20 21 24 25 26 28 29 30 32 35 39 40 42 48 50 52 56 58 60 64 65 70 75 78 80 84 87 91 96 100 104 105 112 116 120 128 130 140 145 150 156 160 168 169 174 175 182 192 195 200 203 208 210 224 232 240 256 260 273 280 290 300 312 320 325 336 338 348 350 364 377 384 390 400 406 416 420 435 448 455 464 480 507 512 520 525 546 560 580 600 609 624 640 650 672 676 696 700 725 728 754 768 780 800 812 832 840 845 870 896 910 928 960 975 1014 1015 1024 1040 1050 1092 1120 1131 1160 1183 1200 1218 1248 1280 1300 1344 1352 1365 1392 1400 1450 1456 1508 1536 1560 1600 1624 1664 1680 1690 1740 1792 1820 1856 1885 1920 1950 2028 2030 2048 2080 2100 2175 2184 2240 2262 2275 2320 2366 2400 2436 2496 2535 2560 2600 2639 2688 2704 2730 2784 2800 2900 2912 3016 3045 3072 3120 3200 3248 3328 3360 3380 3480 3549 3584 3640 3712 3770 3840 3900 4056 4060 4096 4160 4200 4225 4350 4368 4480 4524 4550 4640 4732 4800 4872 4901 4992 5070 5075 5120 5200 5278 5376 5408 5460 5568 5600 5655 5800 5824 5915 6032 6090 6144 6240 6400 6496 6656 6720 6760 6825 6960 7098 7168 7280 7424 7540 7680 7800 7917 8112 8120 8192 8320 8400 8450 8700 8736 8960 9048 9100 9280 9425 9464 9600 9744 9802 9984 10140 10150 10240 10400 10556 10752 10816 10920 11136 11200 11310 11600 11648 11830 12064 12180 12288 12480 12675 12800 12992 13195 13312 13440 13520 13650 13920 14196 14336 14560 14703 14848 15080 15225 15360 15600 15834 16224 16240 16640 16800 16900 17400 17472 17745 17920 18096 18200 18560 18850 18928 19200 19488 19604 19968 20280 20300 20480 20800 21112 21504 21632 21840 22272 22400 22620 23200 23296 23660 24128 24360 24505 24576 24960 25350 25600 25984 26390 26624 26880 27040 27300 27840 28275 28392 28672 29120 29406 29575 29696 30160 30450 30720 31200 31668 32448 32480 33280 33600 33800 34307 34800 34944 35490 35840 36192 36400 37120 37700 37856 38400 38976 39208 39585 39936 40560 40600 40960 41600 42224 43008 43264 43680 44544 44800 45240 46400 46592 47320 48256 48720 49010 49920 50700 51200 51968 52780 53248 53760 54080 54600 55680 56550 56784 57344 58240 58812 59150 59392 60320 60900 61440 62400 63336 64896 64960 65975 66560 67200 67600 68614 69600 69888 70980 71680 72384 72800 73515 74240 75400 75712 76800 77952 78416 79170 79872 81120 81200 83200 84448 86016 86528 87360 88725 89088 89600 90480 92800 93184 94640 96512 97440 98020 99840 101400 102400 102921 103936 105560 106496 107520 108160 109200 111360 113100 113568 116480 117624 118300 118784 120640 121800 122525 122880 124800 126672 129792 129920 131950 133120 134400 135200 137228 139200 139776 141960 143360 144768 145600 147030 148480 150800 151424 153600 155904 156832 158340 159744 162240 162400 166400 168896 171535 172032 173056 174720 177450 178176 179200 180960 185600 186368 189280 193024 194880 196040 197925 199680 202800 204800 205842 207872 211120 215040 216320 218400 222720 226200 227136 232960 235248 236600 237568 241280 243600 245050 249600 253344 259584 259840 263900 266240 268800 270400 274456 278400 279552 283920 286720 289536 291200 294060 296960 301600 302848 307200 311808 313664 316680 319488 324480 324800 332800 337792 343070 346112 349440 354900 356352 358400 361920 367575 371200 372736 378560 386048 389760 392080 395850 399360 405600 411684 415744 422240 430080 432640 436800 445440 452400 454272 465920 470496 473200 482560 487200 490100 499200 506688 514605 519168 519680 527800 532480 537600 540800 548912 556800 559104 567840 579072 582400 588120 593920 603200 605696 614400 623616 627328 633360 648960 649600 665600 675584 686140 692224 698880 709800 712704 716800 723840 735150 742400 745472 757120 772096 779520 784160 791700 798720 811200 823368 831488 844480 857675 860160 865280 873600 890880 904800 908544 931840 940992 946400 965120 974400 980200 998400 1013376 1029210 1038336 1039360 1055600 1075200 1081600 1097824 1113600 1118208 1135680 1158144 1164800 1176240 1187840 1206400 1211392 1247232 1254656 1266720 1297920 1299200 1331200 1351168 1372280 1384448 1397760 1419600 1433600 1447680 1470300 1484800 1514240 1544192 1559040 1568320 1583400 1597440 1622400 1646736 1662976 1688960 1715350 1730560 1747200 1781760 1809600 1817088 1863680 1881984 1892800 1930240 1948800 1960400 1996800 2026752 2058420 2076672 2078720 2111200 2150400 2163200 2195648 2227200 2236416 2271360 2316288 2329600 2352480 2412800 2422784 2494464 2509312 2533440 2573025 2595840 2598400 2662400 2702336 2744560 2795520 2839200 2895360 2940600 2969600 3028480 3088384 3118080 3136640 3166800 3244800 3293472 3377920 3430700 3461120 3494400 3563520 3619200 3634176 3727360 3763968 3785600 3860480 3897600 3920800 3993600 4053504 4116840 4153344 4157440 4222400 4300800 4326400 4391296 4454400 4542720 4632576 4659200 4704960 4825600 4845568 4988928 5018624 5066880 5146050 5191680 5196800 5404672 5489120 5591040 5678400 5790720 5881200 5939200 6056960 6236160 6273280 6333600 6489600 6586944 6755840 6861400 6922240 6988800 7238400 7268352 7527936 7571200 7720960 7795200 7841600 7987200 8107008 8233680 8314880 8444800 8652800 8782592 8908800 9085440 9265152 9318400 9409920 9651200 9691136 10037248 10133760 10292100 10383360 10393600 10809344 10978240 11182080 11356800 11581440 11762400 12113920 12472320 12546560 12667200 12979200 13173888 13511680 13722800 13977600 14476800 14536704 15055872 15142400 15441920 15590400 15683200 16214016 16467360 16889600 17305600 17565184 17817600 18170880 18636800 18819840 19302400 20074496 20267520 20584200 20766720 20787200 21618688 21956480 22713600 23162880 23524800 24227840 24944640 25093120 25334400 25958400 26347776 27023360 27445600 27955200 28953600 29073408 30111744 30284800 31180800 31366400 32428032 32934720 33779200 34611200 35130368 36341760 37639680 38604800 40148992 40535040 41168400 41574400 43912960 45427200 46325760 47049600 48455680 50186240 50668800 51916800 52695552 54046720 54891200 55910400 57907200 60223488 60569600 62361600 62732800 64856064 65869440 67558400 70260736 72683520 75279360 77209600 81070080 82336800 87825920 90854400 94099200 100372480 101337600 103833600 105391104 108093440 109782400 115814400 120446976 121139200 124723200 125465600 131738880 135116800 140521472 145367040 150558720 162140160 164673600 175651840 181708800 188198400 200744960 202675200 210782208 219564800 231628800 242278400 250931200 263477760 270233600 281042944 301117440 324280320 329347200 351303680 363417600 376396800 405350400 421564416 439129600 501862400 526955520 540467200 602234880 658694400 702607360 726835200 752793600 810700800 843128832 878259200 1003724800 1053911040 1317388800 1405214720 1505587200 1621401600 1756518400 2107822080 2634777600 3011174400 3513036800 4215644160 5269555200 7026073600 10539110400 21078220800
• Sum of all divisors σ(n): 89223128640
• Sum of proper divisors (its aliquot sum) s(n): 68144907840
• 21078220800 is an abundant number, because the sum of its proper divisors (68144907840) is greater than itself. Its abundance is 47066687040

Bases of 21078220800

• Binary: 10011101000010111000010000000000000₂
• Hexadecimal: 0x4E85C2000
• Base-36: 9OLFF9C

Squares and roots of 21078220800

• 21078220800 squared (21078220800²) is 444291392093552640000
• 21078220800 cubed (21078220800³) is 9364872062087276802342912000000
• The square root of 21078220800 is 145183.4040102379
• The cube root of 21078220800 is 2762.3454123413

Scales and comparisons

• 21,078,220,800 seconds is equal to 670 years, 11 weeks, 3 days, 21 hours, 20 minutes.
• To count from 1 to 21,078,220,800 would take you about one thousand, three hundred forty 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 21078220800 cubic inches would be around 230.2 feet tall.

Recreational maths with 21078220800

• 21078220800 backwards is 00802287012
• 21078220800 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21078220800's digits is 30
• More coming soon!