18172223019720

Names of 18172223019720

• Cardinal: 18172223019720 can be written as Eighteen trillion, one hundred seventy-two billion, two hundred twenty-three million, nineteen thousand, seven hundred twenty.

Scientific notation

• Scientific notation: 1.817222301972 × 10¹³

Factors of 18172223019720

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 110597

Divisors of 18172223019720

• Number of divisors d(n): 768
• Complete list of divisors:
  1 2 3 4 5 6 7 8 9 10 11 12 14 15 18 20 21 22 24 28 30 33 35 36 40 42 44 45 49 55 56 60 63 66 70 72 77 84 88 90 98 99 105 110 120 121 126 132 140 147 154 165 168 180 196 198 210 220 231 242 245 252 264 280 294 308 315 330 343 360 363 385 392 396 420 440 441 462 484 490 495 504 539 588 605 616 630 660 686 693 726 735 770 792 840 847 882 924 968 980 990 1029 1078 1089 1155 1176 1210 1260 1320 1331 1372 1386 1452 1470 1540 1617 1694 1715 1764 1815 1848 1960 1980 2058 2156 2178 2205 2310 2420 2520 2541 2662 2695 2744 2772 2904 2940 3080 3087 3234 3388 3430 3465 3528 3630 3773 3960 3993 4116 4235 4312 4356 4410 4620 4840 4851 5082 5145 5324 5390 5445 5544 5880 5929 6174 6468 6655 6776 6860 6930 7260 7546 7623 7986 8085 8232 8470 8712 8820 9240 9317 9702 10164 10290 10648 10780 10890 11319 11858 11979 12348 12705 12936 13310 13720 13860 14520 15092 15246 15435 15972 16170 16940 17640 17787 18634 18865 19404 19965 20328 20580 21560 21780 22638 23716 23958 24255 24696 25410 26620 27720 27951 29645 30184 30492 30870 31944 32340 33880 33957 35574 37268 37730 38115 38808 39930 41160 41503 43560 45276 46585 47432 47916 48510 50820 53240 53361 55902 56595 59290 59895 60984 61740 64680 65219 67914 71148 74536 75460 76230 79860 83006 83853 88935 90552 93170 95832 97020 101640 106722 110569 111804 113190 118580 119790 123480 124509 130438 135828 139755 142296 150920 152460 159720 166012 167706 169785 177870 186340 194040 195657 207515 213444 221138 223608 226380 237160 239580 249018 260876 266805 271656 279510 304920 326095 331707 332024 335412 339570 355740 372680 373527 391314 415030 419265 426888 442276 452760 456533 479160 498036 521752 533610 552845 559020 586971 622545 652190 663414 670824 679140 711480 747054 773983 782628 830060 838530 884552 913066 978285 995121 996072 1067220 1105690 1118040 1173942 1216259 1245090 1304380 1326828 1358280 1369599 1494108 1547966 1565256 1658535 1660120 1677060 1826132 1867635 1956570 1990242 2134440 2211380 2282665 2321949 2347884 2432518 2490180 2608760 2653656 2739198 2934855 2988216 3095932 3317070 3354120 3648777 3652264 3735270 3869915 3913140 3980484 4108797 4422760 4565330 4643898 4695768 4865036 4975605 4980360 5417881 5478396 5869710 6081295 6191864 6634140 6847995 6965847 7297554 7470540 7739830 7826280 7960968 8217594 8513813 9130660 9287796 9730072 9951210 10835762 10946331 10956792 11609745 11739420 12162590 13268280 13378849 13695990 13931694 14595108 14941080 15479660 16253643 16435188 17027626 18243885 18261320 18575592 19902420 20543985 21671524 21892662 23219490 23478840 24325180 25541439 26757698 27089405 27391980 27863388 29190216 30959320 32507286 32870376 34055252 34829235 36487770 37925167 39804840 40136547 41087970 42569065 43343048 43785324 46438980 48650360 48760929 51082878 53515396 54178810 54731655 54783960 55726776 59596691 65014572 66894245 68110504 69658470 72975540 75850334 76624317 80273094 81268215 82175940 85138130 87570648 92877960 93651943 97521858 102165756 107030792 108357620 109463310 113775501 119193382 120409641 127707195 130029144 133788490 139316940 145951080 147167339 151700668 153248634 160546188 162536430 164351880 170276260 178790073 187303886 189625835 195043716 200682735 204331512 216715240 218926620 227551002 238386764 240819282 243804645 255414390 267576980 278633880 280955829 294334678 297983455 303401336 306497268 321092376 325072860 340552520 341326503 357580146 374607772 379251670 383121585 390087432 401365470 417176837 437853240 441502017 455102004 468259715 476773528 481638564 487609290 510828780 535153960 536370219 561911658 568877505 588669356 595966910 602048205 612994536 650145720 655563601 682653006 715160292 735836695 749215544 758503340 766243170 802730940 834353674 842867487 883004034 893950365 910204008 936519430 963277128 975218580 1021657560 1030171373 1072740438 1123823316 1137755010 1177338712 1191933820 1204096410 1251530511 1311127202 1324506051 1365306012 1404779145 1430320584 1471673390 1517006680 1532486340 1605461880 1668707348 1685734974 1706632515 1766008068 1787900730 1873038860 1950437160 1966690803 2060342746 2085884185 2145480876 2207510085 2247646632 2275510020 2383867640 2408192820 2503061022 2622254404 2649012102 2681851095 2730612024 2809558290 2943346780 3064972680 3090514119 3277818005 3337414696 3371469948 3413265030 3532016136 3575801460 3746077720 3754591533 3933381606 4120685492 4171768370 4214337435 4290961752 4415020170 4551020040 4588945207 4816385640 5006122044 5150856865 5244508808 5298024204 5363702190 5619116580 5886693560 5900072409 6181028238 6257652555 6555636010 6622530255 6742939896 6826530060 7151602920 7211199611 7509183066 7866763212 8241370984 8343536740 8428674870 8830040340 9177890414 9271542357 9833454015 10012244088 10301713730 10596048408 10727404380 11238233160 11800144818 12362056476 12515305110 13111272020 13245060510 13653060120 13766835621 14422399222 15018366132 15452570595 15733526424 16687073480 16857349740 17660080680 18355780828 18543084714 18772957665 19666908030 20603427460 21454808760 21633598833 22944726035 23600289636 24724112952 25030610220 26222544040 26490121020 27533671242 28844798444 29500362045 30036732264 30905141190 33714699480 36055998055 36711561656 37086169428 37545915330 39333816060 41206854920 41300506863 43267197666 45889452070 46357711785 47200579272 50061220440 50478397277 52980242040 55067342484 57689596888 59000724090 61810282380 64900796499 68834178105 72111996110 74172338856 75091830660 78667632120 82601013726 86534395332 91778904140 92715423570 100956794554 108167994165 110134684968 118001448180 123620564760 129801592998 137668356210 144223992220 150183661320 151435191831 165202027452 173068790664 183557808280 185430847140 201913589108 206502534315 216335988330 236002896360 252391986385 259603185996 275336712420 288447984440 302870383662 324503982495 330404054904 370861694280 403827178216 413005068630 432671976660 454305575493 504783972770 519206371992 550673424840 605740767324 649007964990 757175959155 826010137260 865343953320 908611150986 1009567945540 1211481534648 1298015929980 1514351918310 1652020274520 1817222301972 2019135891080 2271527877465 2596031859960 3028703836620 3634444603944 4543055754930 6057407673240 9086111509860 18172223019720
• Sum of all divisors σ(n): 75757256640000
• Sum of proper divisors (its aliquot sum) s(n): 57585033620280
• 18172223019720 is an abundant number, because the sum of its proper divisors (57585033620280) is greater than itself. Its abundance is 39412810600560

Bases of 18172223019720

• Binary: 100001000011100001100111001011101101011001000₂
• Hexadecimal: 0x10870CE5DAC8
• Base-36: 6FW7CE5E0

Squares and roots of 18172223019720

• 18172223019720 squared (18172223019720²) is 330229689478441475508878400
• 18172223019720 cubed (18172223019720³) is 6001007564935121661911242661718282048000
• The square root of 18172223019720 is 4262889.0461422991
• The cube root of 18172223019720 is 26290.7324784393

Scales and comparisons

• 18,172,223,019,720 seconds is equal to 577,820 years, 25 weeks, 7 hours, 42 minutes.
• To count from 1 to 18,172,223,019,720 would take you about one million, four hundred forty-four thousand, five 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 18172223019720 cubic inches would be around 2190.9 feet tall.

Recreational maths with 18172223019720

• 18172223019720 backwards is 02791032227181
• 18172223019720 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 18172223019720's digits is 45
• More coming soon!