18728171268768

Names of 18728171268768

• Cardinal: 18728171268768 can be written as Eighteen trillion, seven hundred twenty-eight billion, one hundred seventy-one million, two hundred sixty-eight thousand, seven hundred sixty-eight.

Scientific notation

• Scientific notation: 1.8728171268768 × 10¹³

Factors of 18728171268768

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 257

Divisors of 18728171268768

• Number of divisors d(n): 864
• Complete list of divisors:
  1 2 3 4 6 8 9 12 13 16 18 19 24 26 32 36 38 39 48 52 57 72 76 78 83 96 104 114 117 137 144 152 156 166 169 171 208 228 234 247 249 274 288 304 312 332 338 342 411 416 456 468 494 498 507 548 608 624 664 676 684 741 747 822 912 936 988 996 1014 1079 1096 1233 1248 1328 1352 1368 1482 1494 1521 1577 1644 1781 1824 1872 1976 1992 2028 2158 2192 2197 2223 2466 2603 2656 2704 2736 2964 2988 3042 3154 3211 3237 3288 3562 3744 3952 3984 4056 4316 4384 4394 4446 4731 4932 5206 5343 5408 5472 5928 5976 6084 6308 6422 6474 6576 6591 7124 7809 7904 7968 8112 8632 8788 8892 9462 9633 9711 9864 10412 10686 11371 11856 11952 12168 12616 12844 12948 13152 13182 14027 14193 14248 15618 16029 16224 17264 17576 17784 18769 18924 19266 19422 19728 19773 20501 20824 21372 22742 23153 23427 23712 23904 24336 25232 25688 25896 26364 28054 28386 28496 28899 31236 32058 33839 34113 34528 35152 35568 37538 37848 38532 38844 39456 39546 41002 41648 41743 42081 42744 45484 46306 46854 48672 50464 51376 51792 52728 56108 56307 56772 56992 57798 61503 62472 64116 67678 68226 69459 70304 71136 75076 75696 77064 77688 79092 82004 83296 83486 84162 85488 90968 92612 93708 101517 102339 102752 103584 105456 112216 112614 113544 115596 123006 124944 125229 126243 128232 135356 136452 138918 147823 150152 151392 154128 155376 158184 164008 166972 168324 168921 170976 181936 182351 184509 185224 187416 203034 204678 208377 210912 216049 224432 225228 227088 231192 243997 246012 249888 250458 252486 256464 266513 270712 272904 277836 295646 300304 300989 304551 308256 310752 316368 328016 333944 336648 337842 356611 363872 364702 369018 370448 374832 375687 406068 409356 416754 432098 439907 443469 448864 450456 454176 462384 487994 492024 500916 504972 512928 533026 541424 545808 547053 555672 591292 600608 601978 609102 632736 648147 656032 667888 673296 675684 713222 729404 731991 738036 740896 749664 751374 799539 812136 818712 833508 864196 879814 886938 900912 902967 924768 975988 984048 1001832 1009944 1066052 1069833 1082848 1091616 1094106 1111344 1182584 1203956 1218204 1296294 1319721 1330407 1335776 1346592 1351368 1426444 1458808 1463982 1476072 1502748 1557827 1599078 1624272 1637424 1641159 1667016 1728392 1759628 1773876 1801824 1805934 1921699 1944441 1951976 1968096 2003664 2019888 2132104 2139666 2188212 2195973 2222688 2365168 2398617 2407912 2436408 2592588 2639442 2660814 2702736 2708901 2808637 2852888 2917616 2927964 2952144 3005496 3115654 3171961 3198156 3209499 3248544 3274848 3282318 3334032 3456784 3464669 3519256 3547752 3611868 3843398 3888882 3903952 3959163 4007328 4039776 4264208 4279332 4376424 4391946 4635943 4673481 4730336 4797234 4815824 4872816 5185176 5278884 5321628 5405472 5417802 5617274 5705776 5718791 5765097 5835232 5855928 5904288 6010992 6231308 6343922 6396312 6418998 6564636 6668064 6913568 6929338 7038512 7095504 7223736 7686796 7777764 7807904 7918326 8425911 8528416 8558664 8752848 8783892 9271886 9346962 9515883 9594468 9631648 9745632 10370352 10394007 10557768 10643256 10835604 11234548 11411552 11437582 11530194 11711856 12021984 12462616 12687844 12792624 12837996 13129272 13858676 13907829 14020443 14077024 14191008 14447472 15373592 15555528 15836652 16851822 17117328 17156373 17295291 17505696 17567784 18543772 18693924 19031766 19188936 20251751 20740704 20788014 21115536 21286512 21671208 22469096 22875164 23060388 23423712 24925232 24982087 25277733 25375688 25585248 25675992 26258544 27717352 27815658 28040886 28547649 28894944 29598713 30747184 31111056 31182021 31673304 33703644 34234656 34312746 34590582 35135568 36512281 37087544 37387848 38063532 38377872 40503502 41235493 41576028 41723487 42231072 42573024 43342416 44938192 45750328 46120776 49850464 49964174 50555466 50751376 51351984 51469119 52517088 55434704 55631316 56081772 57095298 59197426 60267259 60755253 61494368 62222112 62364042 63346608 67407288 68625492 69181164 70271136 73024562 74175088 74775696 74946261 76127064 76755744 81007004 82470986 83152056 83446974 86684832 88796139 89876384 91500656 92241552 99928348 101110932 101502752 102703968 102938238 109536843 110869408 111262632 112163544 114190596 118394852 120534518 121510506 123706479 124728084 126693216 134814576 137250984 138362328 146049124 148350176 149551392 149892522 152254128 162014008 164941972 166304112 166893948 177592278 180801777 182265759 183001312 184483104 199856696 202221864 205876476 219073686 222525264 224327088 224838783 228381192 236789704 241069036 243021012 247412958 249456168 263272763 266388417 269629152 274501968 276724656 292098248 299785044 304508256 324028016 328610529 329883944 332608224 333787896 355184556 361603554 364531518 371119437 384783269 399713392 404443728 411752952 438147372 445050528 448654176 449677566 456762384 473579408 474659653 482138072 486042024 494825916 498912336 526545526 532776834 542405331 549003936 553449312 584196496 599570088 648056032 657221058 659767888 667575792 710369112 723207108 729063036 742238874 769566538 783474367 789818289 799426784 808887456 823505904 876294744 899355132 913524768 947158816 949319306 964276144 972084048 989651832 997824672 1053091052 1065553668 1084810662 1154349807 1168392992 1199140176 1314442116 1319535776 1335151584 1420738224 1423978959 1446414216 1458126072 1484477748 1539133076 1566948734 1579636578 1647011808 1752589488 1798710264 1898638612 1928552288 1944168096 1979303664 2106182104 2131107336 2169621324 2308699614 2350423101 2369454867 2398280352 2628884232 2841476448 2847957918 2892828432 2916252144 2968955496 3078266152 3133897468 3159273156 3422545919 3463049421 3505178976 3597420528 3797277224 3958607328 4212364208 4262214672 4271936877 4339242648 4617399228 4700846202 4738909734 5002182497 5257768464 5695915836 5785656864 5832504288 5937910992 6156532304 6267794936 6318546312 6845091838 6926098842 7051269303 7194841056 7594554448 8424728416 8524429344 8543873754 8678485296 9234798456 9401692404 9477819468 10004364994 10267637757 10515536928 11391831672 11875821984 12313064608 12535589872 12637092624 13690183676 13852197684 14102538606 15006547491 15189108896 17087747508 17356970592 18469596912 18803384808 18955638936 20008729988 20535275514 22783663344 25071179744 25274185248 27380367352 27704395368 28205077212 30013094982 30802913271 34175495016 36939193824 37606769616 37911277872 40017459976 41070551028 45019642473 45567326688 54760734704 55408790736 56410154424 60026189964 61605826542 65028372461 68350990032 75213539232 75822555744 80034919952 82141102056 90039284946 109521469408 110817581472 112820308848 120052379928 123211653084 130056744922 136701980064 160069839904 164282204112 180078569892 195085117383 225640617696 240104759856 246423306168 260113489844 328564408224 360157139784 390170234766 480209519712 492846612336 520226979688 585255352149 720314279568 780340469532 985693224672 1040453959376 1170510704298 1440628559136 1560680939064 2080907918752 2341021408596 3121361878128 4682042817192 6242723756256 9364085634384 18728171268768
• Sum of all divisors σ(n): 61914556267200
• Sum of proper divisors (its aliquot sum) s(n): 43186384998432
• 18728171268768 is an abundant number, because the sum of its proper divisors (43186384998432) is greater than itself. Its abundance is 24458213729664

Bases of 18728171268768

• Binary: 100010000100001111101111111101110101010100000₂
• Hexadecimal: 0x11087DFEEAA0
• Base-36: 6MZLPMJS0

Squares and roots of 18728171268768

• 18728171268768 squared (18728171268768²) is 350744399072307198892237824
• 18728171268768 cubed (18728171268768³) is 6568801177387281235250701772408879480832
• The square root of 18728171268768 is 4327605.7201145301
• The cube root of 18728171268768 is 26556.1506758315

Scales and comparisons

• 18,728,171,268,768 seconds is equal to 595,497 years, 47 weeks, 4 days, 12 hours, 52 minutes, 48 seconds.
• To count from 1 to 18,728,171,268,768 would take you about one million, four hundred eighty-eight thousand, seven hundred forty-four 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 18728171268768 cubic inches would be around 2213 feet tall.

Recreational maths with 18728171268768

• 18728171268768 backwards is 86786217182781
• 18728171268768 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 18728171268768's digits is 72
• More coming soon!