81940946867200

Names of 81940946867200

• Cardinal: 81940946867200 can be written as Eighty-one trillion, nine hundred forty billion, nine hundred forty-six million, eight hundred sixty-seven thousand, two hundred.

Scientific notation

• Scientific notation: 8.19409468672 × 10¹³

Factors of 81940946867200

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 17
• Sum of prime factors: 246

Divisors of 81940946867200

• Number of divisors d(n): 594
• Complete list of divisors:
  1 2 4 5 8 10 16 20 25 32 37 40 50 64 71 74 80 100 128 131 142 148 160 185 200 256 262 284 296 320 355 370 400 512 524 568 592 640 655 710 740 800 925 1024 1048 1136 1184 1280 1310 1420 1480 1600 1775 1850 2096 2272 2368 2560 2620 2627 2840 2960 3200 3275 3550 3700 4192 4544 4736 4847 5041 5120 5240 5254 5680 5920 6400 6550 7100 7400 8384 9088 9301 9472 9694 10082 10480 10508 11360 11840 12800 13100 13135 14200 14800 16768 17161 18176 18602 18944 19388 20164 20960 21016 22720 23680 24235 25205 25600 26200 26270 28400 29600 33536 34322 36352 37204 37888 38776 40328 41920 42032 45440 46505 47360 48470 50410 52400 52540 56800 59200 65675 67072 68644 72704 74408 77552 80656 83840 84064 85805 90880 93010 94720 96940 100820 104800 105080 113600 118400 121175 126025 131350 134144 137288 148816 155104 161312 167680 168128 171610 181760 186020 186517 189440 193880 201640 209600 210160 227200 232525 236800 242350 252050 262700 274576 297632 310208 322624 335360 336256 343220 344137 363520 372040 373034 387760 403280 419200 420320 429025 454400 465050 473600 484700 504100 525400 549152 595264 620416 634957 645248 660371 670720 672512 686440 688274 744080 746068 775520 806560 838400 840640 858050 908800 930100 932585 947200 969400 1008200 1050800 1098304 1190528 1218431 1240832 1269914 1290496 1320742 1345024 1372880 1376548 1488160 1492136 1551040 1613120 1676800 1681280 1716100 1720685 1817600 1860200 1865170 1938800 2016400 2101600 2196608 2381056 2436862 2481664 2539828 2580992 2641484 2690048 2745760 2753096 2976320 2984272 3102080 3174785 3226240 3301855 3353600 3362560 3432200 3441370 3720400 3730340 3877600 4032800 4203200 4393216 4662925 4762112 4873724 4963328 5079656 5161984 5282968 5491520 5506192 5952640 5968544 6092155 6204160 6349570 6452480 6603710 6725120 6864400 6882740 7440800 7460680 7755200 8065600 8406400 8603425 8786432 9325850 9524224 9747448 10159312 10565936 10983040 11012384 11905280 11937088 12184310 12408320 12699140 12904960 13207420 13450240 13728800 13765480 14881600 14921360 15510400 15873925 16131200 16509275 16812800 17206850 17572864 18651700 19494896 20318624 21131872 21966080 22024768 23810560 23874176 24368620 24433727 24816640 25398280 25809920 26414840 27457600 27530960 29763200 29842720 30460775 31020800 31747850 32262400 33018550 33625600 34413700 37303400 38989792 40637248 42263744 43932160 44049536 45081947 47621120 47748352 48737240 48867454 50796560 52829680 54915200 55061920 59526400 59685440 60921550 62041600 63495700 64524800 66037100 67251200 68827400 74606800 77979584 81274496 84527488 86508601 87864320 88099072 90163894 95496704 97474480 97734908 101593120 105659360 109830400 110123840 119052800 119370880 121843100 122168635 124083200 126991400 129049600 132074200 137654800 149213600 155959168 162548992 169054976 173017202 176198144 180327788 190993408 194948960 195469816 203186240 211318720 219660800 220247680 225409735 238105600 238741760 243686200 244337270 253982800 264148400 275309600 298427200 311918336 325097984 338109952 346034404 352396288 360655576 389897920 390939632 406372480 422637440 432543005 439321600 440495360 450819470 477483520 487372400 488674540 507965600 528296800 550619200 596854400 610843175 623836672 650195968 676219904 692068808 721311152 779795840 781879264 812744960 845274880 865086010 880990720 901638940 954967040 974744800 977349080 1015931200 1056593600 1101238400 1127048675 1193708800 1221686350 1247673344 1384137616 1442622304 1559591680 1563758528 1625489920 1690549760 1730172020 1761981440 1803277880 1949489600 1954698160 2031862400 2113187200 2162715025 2202476800 2254097350 2387417600 2443372700 2768275232 2885244608 3119183360 3127517056 3200818237 3250979840 3381099520 3460344040 3606555760 3898979200 3909396320 4063724800 4226374400 4325430050 4404953600 4508194700 4774835200 4886745400 5536550464 5770489216 6238366720 6255034112 6401636474 6920688080 7213111520 7797958400 7818792640 8127449600 8452748800 8650860100 8809907200 9016389400 9773490800 11073100928 11540978432 12510068224 12803272948 13841376160 14426223040 15595916800 15637585280 16004091185 16254899200 16905497600 17301720200 18032778800 19546981600 22146201856 23081956864 25020136448 25606545896 27682752320 28852446080 31191833600 31275170560 32008182370 34603440400 36065557600 39093963200 44292403712 46163913728 51213091792 55365504640 57704892160 62550341120 64016364740 69206880800 72131115200 78187926400 80020455925 88584807424 102426183584 110731009280 115409784320 125100682240 128032729480 138413761600 144262230400 156375852800 160040911850 204852367168 221462018560 230819568640 256065458960 276827523200 288524460800 312751705600 320081823700 409704734336 442924037120 512130917920 553655046400 577048921600 625503411200 640163647400 819409468672 1024261835840 1107310092800 1154097843200 1280327294800 1638818937344 2048523671680 2214620185600 2560654589600 3277637874688 4097047343360 5121309179200 8194094686720 10242618358400 16388189373440 20485236716800 40970473433600 81940946867200
• Sum of all divisors σ(n): 213210833192894
• Sum of proper divisors (its aliquot sum) s(n): 131269886325694
• 81940946867200 is an abundant number, because the sum of its proper divisors (131269886325694) is greater than itself. Its abundance is 49328939458494

Bases of 81940946867200

• Binary: 10010101000011001011101000001111101010000000000₂
• Hexadecimal: 0x4A865D07D400
• Base-36: T1N5G41DS

Squares and roots of 81940946867200

• 81940946867200 squared (81940946867200²) is 6714318773493293494435840000
• 81940946867200 cubed (81940946867200³) is 550177637868257433963102584279400448000000
• The square root of 81940946867200 is 9052123.8870885987
• The cube root of 81940946867200 is 43434.3832782661

Scales and comparisons

• 81,940,946,867,200 seconds is equal to 2,605,468 years, 33 weeks, 5 days, 17 hours, 46 minutes, 40 seconds.
• To count from 1 to 81,940,946,867,200 would take you about six million, five hundred thirteen thousand, six hundred seventy-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 81940946867200 cubic inches would be around 3619.5 feet tall.

Recreational maths with 81940946867200

• 81940946867200 backwards is 00276864904918
• 81940946867200 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 81940946867200's digits is 64
• More coming soon!