81467852800

Names of 81467852800

• Cardinal: 81467852800 can be written as Eighty-one billion, four hundred sixty-seven million, eight hundred fifty-two thousand, eight hundred.

Scientific notation

• Scientific notation: 8.14678528 × 10¹⁰

Factors of 81467852800

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 16
• Sum of prime factors: 245

Divisors of 81467852800

• Number of divisors d(n): 216
• Complete list of divisors:
  1 2 4 5 8 10 16 20 25 32 40 41 50 64 80 82 100 128 160 164 197 200 205 256 320 328 394 400 410 512 640 656 788 800 820 985 1024 1025 1280 1312 1576 1600 1640 1970 2048 2050 2560 2624 3152 3200 3280 3940 4100 4925 5120 5248 6304 6400 6560 7880 8077 8200 9850 10240 10496 12608 12800 13120 15760 16154 16400 19700 20992 25216 25600 26240 31520 32308 32800 38809 39400 40385 41984 50432 51200 52480 63040 64616 65600 77618 78800 80770 83968 100864 104960 126080 129232 131200 155236 157600 161540 194045 201728 201925 209920 252160 258464 262400 310472 315200 323080 388090 403456 403850 419840 504320 516928 524800 620944 630400 646160 776180 807700 970225 1008640 1033856 1049600 1241888 1260800 1292320 1552360 1591169 1615400 1940450 2017280 2067712 2099200 2483776 2521600 2584640 3104720 3182338 3230800 3880900 4135424 4967552 5043200 5169280 6209440 6364676 6461600 7761800 7955845 8270848 9935104 10086400 10338560 12418880 12729352 12923200 15523600 15911690 16541696 19870208 20677120 24837760 25458704 25846400 31047200 31823380 39740416 39779225 41354240 49675520 50917408 51692800 62094400 63646760 79480832 79558450 82708480 99351040 101834816 103385600 124188800 127293520 159116900 198702080 203669632 206771200 248377600 254587040 318233800 397404160 407339264 413542400 496755200 509174080 636467600 814678528 993510400 1018348160 1272935200 1629357056 1987020800 2036696320 2545870400 3258714112 4073392640 5091740800 8146785280 10183481600 16293570560 20366963200 40733926400 81467852800
• Sum of all divisors σ(n): 207973231830
• Sum of proper divisors (its aliquot sum) s(n): 126505379030
• 81467852800 is an abundant number, because the sum of its proper divisors (126505379030) is greater than itself. Its abundance is 45037526230

Bases of 81467852800

• Binary: 1001011110111110111001100100000000000₂
• Hexadecimal: 0x12F7DCC800
• Base-36: 11FBUTJ4

Squares and roots of 81467852800

• 81467852800 squared (81467852800²) is 6637011039842467840000
• 81467852800 cubed (81467852800³) is 540703038425861105177853952000000
• The square root of 81467852800 is 285425.7395540913
• The cube root of 81467852800 is 4335.0631000891

Scales and comparisons

• 81,467,852,800 seconds is equal to 2,590 years, 22 weeks, 23 hours, 6 minutes, 40 seconds.
• To count from 1 to 81,467,852,800 would take you about five thousand, one hundred eighty 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 81467852800 cubic inches would be around 361.3 feet tall.

Recreational maths with 81467852800

• 81467852800 backwards is 00825876418
• The number of decimal digits it has is: 11
• The sum of 81467852800's digits is 49
• More coming soon!