81331985375360

Names of 81331985375360

• Cardinal: 81331985375360 can be written as Eighty-one trillion, three hundred thirty-one billion, nine hundred eighty-five million, three hundred seventy-five thousand, three hundred sixty.

Scientific notation

• Scientific notation: 8.133198537536 × 10¹³

Factors of 81331985375360

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 11219

Divisors of 81331985375360

• Number of divisors d(n): 256
• Complete list of divisors:
  1 2 4 5 8 10 16 20 29 32 40 58 64 80 116 128 145 160 191 232 290 320 382 464 580 640 764 928 955 1160 1528 1856 1910 2320 2801 3056 3712 3820 4640 5539 5602 6112 7640 8191 9280 11078 11204 12224 14005 15280 16382 18560 22156 22408 24448 27695 28010 30560 32764 40955 44312 44816 55390 56020 61120 65528 81229 81910 88624 89632 110780 112040 122240 131056 162458 163820 177248 179264 221560 224080 237539 262112 324916 327640 354496 358528 406145 443120 448160 475078 524224 534991 649832 655280 708992 812290 886240 896320 950156 1048448 1069982 1187695 1299664 1310560 1564481 1624580 1772480 1792640 1900312 2139964 2375390 2599328 2621120 2674955 3128962 3249160 3544960 3800624 4279928 4750780 5198656 5242240 5349910 6257924 6498320 7601248 7822405 8559856 9501560 10397312 10699820 12515848 12996640 15202496 15514739 15644810 17119712 19003120 21399640 22942991 25031696 25993280 30404992 31029478 31289620 34239424 38006240 42799280 45369949 45885982 50063392 51986560 62058956 62579240 68478848 76012480 77573695 85598560 90739898 91771964 100126784 114714955 124117912 125158480 152024960 155147390 171197120 181479796 183543928 200253568 226849745 229429910 248235824 250316960 310294780 342394240 362959592 367087856 453699490 458859820 496471648 500633920 620589560 665346739 725919184 734175712 907398980 917719640 992943296 1001267840 1241179120 1330693478 1451838368 1468351424 1814797960 1835439280 1985886592 2482358240 2661386956 2903676736 2936702848 3326733695 3629595920 3670878560 4382111281 4964716480 5322773912 5807353472 6653467390 7259191840 7341757120 8764222562 9929432960 10645547824 13306934780 14518383680 14683514240 17528445124 21291095648 21910556405 26613869560 29036767360 35056890248 42582191296 43821112810 53227739120 70113780496 85164382592 87642225620 106455478240 127081227149 140227560992 175284451240 212910956480 254162454298 280455121984 350568902480 425821912960 508324908596 560910243968 635406135745 701137804960 1016649817192 1270812271490 1402275609920 2033299634384 2541624542980 2804551219840 4066599268768 5083249085960 8133198537536 10166498171920 16266397075072 20332996343840 40665992687680 81331985375360
• Sum of all divisors σ(n): 202288870195200
• Sum of proper divisors (its aliquot sum) s(n): 120956884819840
• 81331985375360 is an abundant number, because the sum of its proper divisors (120956884819840) is greater than itself. Its abundance is 39624899444480

Bases of 81331985375360

• Binary: 10010011111100010010100000110001110000010000000₂
• Hexadecimal: 0x49F89418E080
• Base-36: STVEC5V28

Squares and roots of 81331985375360

• 81331985375360 squared (81331985375360²) is 6614891845097772920095129600
• 81331985375360 cubed (81331985375360³) is 538002286805080193646483322487163846656000
• The square root of 81331985375360 is 9018424.7723956759
• The cube root of 81331985375360 is 43326.5183571675

Scales and comparisons

• 81,331,985,375,360 seconds is equal to 2,586,105 years, 29 weeks, 7 hours, 49 minutes, 20 seconds.
• To count from 1 to 81,331,985,375,360 would take you about six million, four hundred sixty-five thousand, two hundred sixty-three 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 81331985375360 cubic inches would be around 3610.5 feet tall.

Recreational maths with 81331985375360

• 81331985375360 backwards is 06357358913318
• The number of decimal digits it has is: 14
• The sum of 81331985375360's digits is 62
• More coming soon!