81976320000

Names of 81976320000

• Cardinal: 81976320000 can be written as Eighty-one billion, nine hundred seventy-six million, three hundred twenty thousand.

Scientific notation

• Scientific notation: 8.197632 × 10¹⁰

Factors of 81976320000

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 21
• Sum of prime factors: 603

Divisors of 81976320000

• Number of divisors d(n): 560
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 25 27 30 32 36 40 45 48 50 54 60 64 72 75 80 90 96 100 108 120 125 128 135 144 150 160 180 192 200 216 225 240 250 256 270 288 300 320 360 375 384 400 432 450 480 500 512 540 576 593 600 625 640 675 720 750 768 800 864 900 960 1000 1024 1080 1125 1152 1186 1200 1250 1280 1350 1440 1500 1536 1600 1728 1779 1800 1875 1920 2000 2048 2160 2250 2304 2372 2400 2500 2560 2700 2880 2965 3000 3072 3200 3375 3456 3558 3600 3750 3840 4000 4096 4320 4500 4608 4744 4800 5000 5120 5337 5400 5625 5760 5930 6000 6144 6400 6750 6912 7116 7200 7500 7680 8000 8192 8640 8895 9000 9216 9488 9600 10000 10240 10674 10800 11250 11520 11860 12000 12288 12800 13500 13824 14232 14400 14825 15000 15360 16000 16011 16875 17280 17790 18000 18432 18976 19200 20000 20480 21348 21600 22500 23040 23720 24000 24576 25600 26685 27000 27648 28464 28800 29650 30000 30720 32000 32022 33750 34560 35580 36000 36864 37952 38400 40000 40960 42696 43200 44475 45000 46080 47440 48000 51200 53370 54000 55296 56928 57600 59300 60000 61440 64000 64044 67500 69120 71160 72000 73728 74125 75904 76800 80000 80055 85392 86400 88950 90000 92160 94880 96000 102400 106740 108000 110592 113856 115200 118600 120000 122880 128000 128088 133425 135000 138240 142320 144000 148250 151808 153600 160000 160110 170784 172800 177900 180000 184320 189760 192000 204800 213480 216000 221184 222375 227712 230400 237200 240000 256000 256176 266850 270000 276480 284640 288000 296500 303616 307200 320000 320220 341568 345600 355800 360000 368640 370625 379520 384000 400275 426960 432000 444750 455424 460800 474400 480000 512000 512352 533700 540000 552960 569280 576000 593000 607232 614400 640000 640440 667125 683136 691200 711600 720000 741250 759040 768000 800550 853920 864000 889500 910848 921600 948800 960000 1024000 1024704 1067400 1080000 1105920 1111875 1138560 1152000 1186000 1214464 1280000 1280880 1334250 1366272 1382400 1423200 1440000 1482500 1518080 1536000 1601100 1707840 1728000 1779000 1821696 1843200 1897600 1920000 2001375 2049408 2134800 2160000 2223750 2277120 2304000 2372000 2428928 2560000 2561760 2668500 2732544 2764800 2846400 2880000 2965000 3036160 3072000 3202200 3335625 3415680 3456000 3558000 3643392 3795200 3840000 4002750 4098816 4269600 4320000 4447500 4554240 4608000 4744000 4857856 5120000 5123520 5337000 5465088 5529600 5692800 5760000 5930000 6072320 6404400 6671250 6831360 6912000 7116000 7286784 7590400 7680000 8005500 8197632 8539200 8640000 8895000 9108480 9216000 9488000 10006875 10247040 10674000 10930176 11385600 11520000 11860000 12144640 12808800 13342500 13662720 13824000 14232000 14573568 15180800 15360000 16011000 16395264 17078400 17280000 17790000 18216960 18976000 20013750 20494080 21348000 21860352 22771200 23040000 23720000 24289280 25617600 26685000 27325440 27648000 28464000 30361600 32022000 32790528 34156800 34560000 35580000 36433920 37952000 40027500 40988160 42696000 43720704 45542400 46080000 47440000 51235200 53370000 54650880 56928000 60723200 64044000 65581056 68313600 69120000 71160000 72867840 75904000 80055000 81976320 85392000 91084800 94880000 102470400 106740000 109301760 113856000 121446400 128088000 131162112 136627200 138240000 142320000 151808000 160110000 163952640 170784000 182169600 189760000 204940800 213480000 218603520 227712000 256176000 273254400 284640000 303616000 320220000 327905280 341568000 364339200 379520000 409881600 426960000 455424000 512352000 546508800 569280000 607232000 640440000 655810560 683136000 759040000 819763200 853920000 910848000 1024704000 1093017600 1138560000 1280880000 1366272000 1518080000 1639526400 1707840000 1821696000 2049408000 2277120000 2561760000 2732544000 3036160000 3279052800 3415680000 4098816000 4554240000 5123520000 5465088000 6831360000 8197632000 9108480000 10247040000 13662720000 16395264000 20494080000 27325440000 40988160000 81976320000
• Sum of all divisors σ(n): 304012122480
• Sum of proper divisors (its aliquot sum) s(n): 222035802480
• 81976320000 is an abundant number, because the sum of its proper divisors (222035802480) is greater than itself. Its abundance is 140059482480

Bases of 81976320000

• Binary: 1001100010110001010110110000000000000₂
• Hexadecimal: 0x13162B6000
• Base-36: 11NQL1C0

Squares and roots of 81976320000

• 81976320000 squared (81976320000²) is 6720117040742400000000
• 81976320000 cubed (81976320000³) is 550890464969352019968000000000000
• The square root of 81976320000 is 286315.0712065293
• The cube root of 81976320000 is 4344.0632450119

Scales and comparisons

• 81,976,320,000 seconds is equal to 2,606 years, 30 weeks, 6 days.
• To count from 1 to 81,976,320,000 would take you about five thousand, two hundred thirteen 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 81976320000 cubic inches would be around 362 feet tall.

Recreational maths with 81976320000

• 81976320000 backwards is 00002367918
• 81976320000 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 81976320000's digits is 36
• More coming soon!