81337942400

Names of 81337942400

• Cardinal: 81337942400 can be written as Eighty-one billion, three hundred thirty-seven million, nine hundred forty-two thousand, four hundred.

Scientific notation

• Scientific notation: 8.13379424 × 10¹⁰

Factors of 81337942400

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 144

Divisors of 81337942400

• Number of divisors d(n): 576
• Complete list of divisors:
  1 2 4 5 8 10 11 13 16 20 22 25 26 32 40 44 50 52 55 64 65 80 88 100 104 110 113 121 128 130 143 160 169 176 200 208 220 226 242 260 275 286 320 325 338 352 400 416 440 452 484 520 550 565 572 605 640 650 676 704 715 800 832 845 880 904 968 1040 1100 1130 1144 1210 1243 1300 1331 1352 1408 1430 1469 1573 1600 1664 1690 1760 1808 1859 1936 2080 2200 2260 2288 2420 2486 2600 2662 2704 2825 2860 2938 3025 3146 3200 3380 3520 3575 3616 3718 3872 4160 4225 4400 4520 4576 4840 4972 5200 5324 5408 5650 5720 5876 6050 6215 6292 6655 6760 7040 7150 7232 7345 7436 7744 7865 8320 8450 8800 9040 9152 9295 9680 9944 10400 10648 10816 11300 11440 11752 12100 12430 12584 13310 13520 13673 14300 14464 14690 14872 15488 15730 16159 16900 17303 17600 18080 18304 18590 19097 19360 19888 20449 20800 21296 21632 22600 22880 23504 24200 24860 25168 26620 27040 27346 28600 29380 29744 31075 31460 32318 33275 33800 34606 35200 36160 36725 37180 38194 38720 39325 39776 40898 41600 42592 45200 45760 46475 47008 48400 49720 50336 53240 54080 54692 57200 58760 59488 62150 62920 64636 66550 67600 68365 69212 72320 73450 74360 76388 77440 78650 79552 80795 81796 85184 86515 90400 91520 92950 94016 95485 96800 99440 100672 102245 106480 108160 109384 114400 117520 118976 124300 125840 129272 133100 135200 136730 138424 146900 148720 150403 152776 157300 159104 161590 163592 170368 173030 177749 180800 185900 188032 190970 193600 198880 201344 204490 210067 212960 218768 224939 228800 235040 237952 248600 251680 258544 266200 270400 273460 276848 293800 297440 300806 305552 314600 323180 327184 341825 346060 355498 361600 371800 381940 387200 397760 403975 408980 420134 425920 432575 437536 449878 457600 470080 477425 497200 503360 511225 517088 532400 540800 546920 553696 587600 594880 601612 611104 629200 646360 654368 683650 692120 710996 743600 752015 763880 795520 807950 817960 840268 851840 865150 875072 888745 899756 940160 954850 994400 1006720 1022450 1034176 1050335 1064800 1093840 1107392 1124695 1175200 1189760 1203224 1222208 1258400 1292720 1308736 1367300 1384240 1421992 1487200 1504030 1527760 1615900 1635920 1680536 1730300 1750144 1777490 1799512 1909700 1955239 1988800 2044900 2068352 2100670 2129600 2187680 2214784 2249390 2310737 2350400 2406448 2444416 2516800 2585440 2617472 2734600 2768480 2843984 2974400 3008060 3055520 3231800 3271840 3361072 3460600 3554980 3599024 3760075 3819400 3910478 3977600 4089800 4201340 4259200 4375360 4443725 4498780 4621474 4700800 4812896 5033600 5170880 5251675 5469200 5536960 5623475 5687968 5948800 6016120 6111040 6463600 6543680 6722144 6921200 7109960 7198048 7520150 7638800 7820956 8179600 8402680 8750720 8887450 8997560 9242948 9625792 9776195 10341760 10503350 10938400 11073920 11246950 11375936 11553685 12032240 12222080 12927200 13087360 13444288 13842400 14219920 14396096 15040300 15277600 15641912 16359200 16805360 17774900 17995120 18485896 19251584 19552390 21006700 21876800 22493900 22751872 23107370 24064480 25418107 25854400 26888576 27684800 28439840 28792192 30080600 30555200 31283824 32718400 33610720 35549800 35990240 36971792 39104780 42013400 43753600 44987800 46214740 48128960 48880975 50836214 51708800 55369600 56879680 57768425 60161200 61110400 62567648 65436800 67221440 71099600 71980480 73943584 78209560 84026800 89975600 92429480 96257920 97761950 101672428 113759360 115536850 120322400 125135296 127090535 134442880 142199200 143960960 147887168 156419120 168053600 179951200 184858960 195523900 203344856 231073700 240644800 250270592 254181070 284398400 295774336 312838240 336107200 359902400 369717920 391047800 406689712 462147400 481289600 508362140 568796800 625676480 635452675 672214400 719804800 739435840 782095600 813379424 924294800 1016724280 1251352960 1270905350 1478871680 1564191200 1626758848 1848589600 2033448560 2541810700 3128382400 3253517696 3697179200 4066897120 5083621400 6256764800 7394358400 8133794240 10167242800 16267588480 20334485600 40668971200 81337942400
• Sum of all divisors σ(n): 241434257040
• Sum of proper divisors (its aliquot sum) s(n): 160096314640
• 81337942400 is an abundant number, because the sum of its proper divisors (160096314640) is greater than itself. Its abundance is 78758372240

Bases of 81337942400

• Binary: 1001011110000000111101000000110000000₂
• Hexadecimal: 0x12F01E8180
• Base-36: 11D6IE0W

Squares and roots of 81337942400

• 81337942400 squared (81337942400²) is 6615860873865717760000
• 81337942400 cubed (81337942400³) is 538120510684903416497537024000000
• The square root of 81337942400 is 285198.0757298337
• The cube root of 81337942400 is 4332.7576124027

Scales and comparisons

• 81,337,942,400 seconds is equal to 2,586 years, 15 weeks, 2 days, 8 hours, 53 minutes, 20 seconds.
• To count from 1 to 81,337,942,400 would take you about five thousand, one hundred seventy-two 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 81337942400 cubic inches would be around 361.1 feet tall.

Recreational maths with 81337942400

• 81337942400 backwards is 00424973318
• The number of decimal digits it has is: 11
• The sum of 81337942400's digits is 41
• More coming soon!