21918508120080

Names of 21918508120080

• Cardinal: 21918508120080 can be written as Twenty-one trillion, nine hundred eighteen billion, five hundred eight million, one hundred twenty thousand and eighty.

Scientific notation

• Scientific notation: 2.191850812008 × 10¹³

Factors of 21918508120080

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 2190

Divisors of 21918508120080

• Number of divisors d(n): 1600
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 11 12 13 15 16 18 20 22 24 26 27 30 33 36 39 40 44 45 48 52 54 55 60 65 66 67 72 78 80 81 88 90 99 104 108 110 117 120 130 132 134 135 143 144 156 162 165 169 176 180 195 198 201 208 216 220 234 240 260 264 268 270 286 297 312 324 330 335 338 351 360 390 396 402 405 429 432 440 468 495 507 520 528 536 540 572 585 594 603 624 648 660 670 676 702 715 720 737 780 792 804 810 845 858 871 880 891 936 990 1005 1014 1040 1053 1072 1080 1144 1170 1188 1206 1287 1296 1320 1340 1352 1404 1430 1474 1485 1521 1560 1584 1608 1620 1690 1716 1742 1755 1782 1809 1859 1872 1980 2010 2028 2089 2106 2145 2160 2197 2211 2288 2340 2376 2412 2535 2574 2613 2640 2680 2704 2808 2860 2948 2970 3015 3042 3120 3216 3240 3380 3432 3484 3510 3564 3618 3685 3718 3861 3960 4020 4056 4178 4212 4290 4355 4394 4422 4455 4563 4680 4752 4824 5070 5148 5226 5265 5360 5427 5577 5616 5720 5896 5940 6030 6084 6267 6435 6480 6591 6633 6760 6864 6968 7020 7128 7236 7370 7436 7605 7722 7839 7920 8040 8112 8356 8424 8580 8710 8788 8844 8910 9045 9126 9295 9360 9581 9648 10140 10296 10445 10452 10530 10854 10985 11055 11154 11323 11440 11583 11792 11880 12060 12168 12534 12870 13065 13182 13266 13520 13689 13936 14040 14256 14472 14740 14872 15210 15444 15678 16080 16712 16731 16848 17160 17420 17576 17688 17820 18090 18252 18590 18801 19162 19305 19773 19899 20280 20592 20890 20904 21060 21708 21970 22110 22308 22646 22815 22979 23166 23517 23760 24120 24167 24336 25068 25740 26130 26364 26532 27135 27157 27378 27885 28080 28743 28944 29480 29744 30420 30888 31335 31356 32955 33165 33424 33462 33969 34320 34840 35152 35376 35640 36180 36504 37180 37602 38324 38610 39195 39546 39798 40560 41780 41808 42120 43416 43940 44220 44616 45292 45630 45958 46332 47034 47905 48240 48334 50136 50193 51480 52260 52728 53064 54270 54314 54756 55770 56403 56615 57486 57915 58960 59319 59697 60840 61776 62670 62712 65910 66330 66924 67938 68445 68937 69680 70551 71280 72360 72501 73008 74360 75204 76648 77220 78390 79092 79596 81471 83560 83655 84240 86229 86832 87880 88440 89232 90584 91260 91916 92664 94005 94068 95810 96668 98865 99495 100272 100386 101907 102960 104520 105456 106128 108540 108628 109512 111540 112806 113230 114895 114972 115830 117585 118638 119394 120835 121680 124553 125340 125424 131820 132660 133848 135785 135876 136890 137874 139963 141102 143715 144720 145002 147199 148720 150408 150579 153296 154440 156780 158184 159192 162942 167120 167310 169209 169845 172458 175760 176880 177957 181168 182520 183832 185328 188010 188136 191620 193336 197730 198990 200772 203814 206811 209040 217080 217256 217503 219024 223080 225612 226460 229790 229944 231660 235170 237276 238788 241670 244413 249106 250680 250965 258687 263640 265320 267696 271570 271752 273780 275748 279926 282015 282204 287430 290004 294398 296595 298485 298727 300816 301158 305721 308880 313560 316368 318384 325884 334620 338418 339690 344685 344916 352755 353041 355914 362505 365040 367664 373659 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1844992266 1858760865 1892299760 1915953507 1935750960 1965080520 1982678256 1995312528 2019394520 2081529736 2097063540 2098468944 2128837230 2161588572 2271818835 2287705680 2341720953 2358096624 2401765080 2423273424 2459989688 2478347820 2494140660 2516476248 2554604676 2601912170 2623086180 2701985715 2726182602 2767488399 2796084720 2838449640 2882118096 2947620780 2974017384 3029091780 3074987110 3122294604 3145595310 3193255845 3242382858 3304463760 3325520880 3382485821 3406139568 3497448240 3602647620 3634910136 3689984532 3717521730 3831907014 3902868255 3930161040 4038789040 4089273903 4163059472 4194127080 4257674460 4323177144 4543637670 4612480665 4683441906 4803530160 4919979376 4956695640 4988281320 5032952496 5109209352 5203824340 5246172360 5403971430 5452365204 5534976798 5676899280 5895241560 5948034768 6058183560 6149974220 6244589208 6291190620 6386511690 6484765716 6764971642 6815456505 7025162859 7205295240 7269820272 7379969064 7435043460 7663814028 7805736510 8105957145 8178547806 8302465197 8388254160 8515348920 8646354288 9087275340 9224961330 9366883812 9579767535 9913391280 9976562640 10147457463 10218418704 10407648680 10492344720 10807942860 10904730408 11069953596 11708604765 11790483120 12116367120 12299948440 12489178416 12582381240 12773023380 12969531432 13529943284 13630913010 13837441995 14050325718 14410590480 14759938128 14870086920 15327628056 15611473020 16211914290 16357095612 16604930394 16912429105 17030697840 18174550680 18449922660 18733767624 19159535070 20294914926 20446369515 20815297360 21075488577 21615885720 21809460816 22139907192 23417209530 24599896880 24907395591 25164762480 25546046760 25939062864 27059886568 27261826020 27674883990 28100651436 29740173840 30442372389 30655256112 31222946040 32423828580 32714191224 33209860788 33824858210 35125814295 36349101360 36899845320 37467535248 38319070140 40589829852 40892739030 41512325985 42150977154 43231771440 44279814384 46834419060 49814791182 50737287315 51092093520 54119773136 54523652040 55349767980 56201302872 60884744778 62445892080 64847657160 65428382448 66419721576 67649716420 70251628590 73799690640 76638140280 81179659704 81785478060 83024651970 84301954308 91327117167 93668838120 99629582364 101474574630 105377442885 109047304080 110699535960 112402605744 121769489556 124536977955 129695314320 132839443152 135299432840 140503257180 152211861945 153276280560 162359319408 163570956120 166049303940 168603908616 182654234334 187337676240 199259164728 202949149260 210754885770 221399071920 243538979112 249073955910 270598865680 273981351501 281006514360 304423723890 327141912240 332098607880 337207817232 365308468668 398518329456 405898298520 421509771540 456635585835 487077958224 498147911820 547962703002 562013028720 608847447780 664197215760 730616937336 811796597040 843019543080 913271171670 996295823640 1095925406004 1217694895560 1369906757505 1461233874672 1686039086160 1826542343340 1992591647280 2191850812008 2435389791120 2739813515010 3653084686680 4383701624016 5479627030020 7306169373360 10959254060040 21918508120080
• Sum of all divisors σ(n): 91350665683200
• Sum of proper divisors (its aliquot sum) s(n): 69432157563120
• 21918508120080 is an abundant number, because the sum of its proper divisors (69432157563120) is greater than itself. Its abundance is 47513649443040

Bases of 21918508120080

• Binary: 100111110111101001100111000111111100000010000₂
• Hexadecimal: 0x13EF4CE3F810
• Base-36: 7RP81TD00

Squares and roots of 21918508120080

• 21918508120080 squared (21918508120080²) is 480420998210012895699206400
• 21918508120080 cubed (21918508120080³) is 10530111550323106799544569587611904512000
• The square root of 21918508120080 is 4681720.6366975805
• The cube root of 21918508120080 is 27985.7530071939

Scales and comparisons

• 21,918,508,120,080 seconds is equal to 696,940 years, 39 weeks, 3 days, 13 hours, 48 minutes.
• To count from 1 to 21,918,508,120,080 would take you about one million, seven hundred forty-two thousand, three 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 21918508120080 cubic inches would be around 2332.1 feet tall.

Recreational maths with 21918508120080

• 21918508120080 backwards is 08002180581912
• 21918508120080 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 21918508120080's digits is 45
• More coming soon!