81430315008

Names of 81430315008

• Cardinal: 81430315008 can be written as Eighty-one billion, four hundred thirty million, three hundred fifteen thousand and eight.

Scientific notation

• Scientific notation: 8.1430315008 × 10¹⁰

Factors of 81430315008

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 25
• Sum of prime factors: 55

Divisors of 81430315008

• Number of divisors d(n): 264
• Complete list of divisors:
  1 2 3 4 6 7 8 12 14 16 21 24 28 32 42 43 48 56 64 84 86 96 112 128 129 168 172 192 224 256 258 301 336 344 384 448 512 516 602 672 688 768 896 903 1024 1032 1204 1344 1376 1536 1792 1806 1849 2048 2064 2408 2688 2752 3072 3584 3612 3698 4096 4128 4816 5376 5504 5547 6144 7168 7224 7396 8192 8256 9632 10752 11008 11094 12288 12943 14336 14448 14792 16384 16512 19264 21504 22016 22188 24576 25886 28672 28896 29584 32768 33024 38528 38829 43008 44032 44376 49152 51772 57344 57792 59168 65536 66048 77056 77658 86016 88064 88752 98304 103544 114688 115584 118336 131072 132096 154112 155316 172032 176128 177504 196608 207088 229376 231168 236672 262144 264192 308224 310632 344064 352256 355008 393216 414176 458752 462336 473344 524288 528384 616448 621264 688128 704512 710016 786432 828352 917504 924672 946688 1048576 1056768 1232896 1242528 1376256 1409024 1420032 1572864 1656704 1835008 1849344 1893376 2097152 2113536 2465792 2485056 2752512 2818048 2840064 3145728 3313408 3670016 3698688 3786752 4227072 4931584 4970112 5505024 5636096 5680128 6291456 6626816 7340032 7397376 7573504 8454144 9863168 9940224 11010048 11272192 11360256 13253632 14680064 14794752 15147008 16908288 19726336 19880448 22020096 22544384 22720512 26507264 29589504 30294016 33816576 39452672 39760896 44040192 45088768 45441024 53014528 59179008 60588032 67633152 78905344 79521792 90177536 90882048 106029056 118358016 121176064 135266304 157810688 159043584 181764096 212058112 236716032 242352128 270532608 315621376 318087168 363528192 424116224 473432064 484704256 631242752 636174336 727056384 848232448 946864128 969408512 1272348672 1454112768 1696464896 1893728256 1938817024 2544697344 2908225536 3392929792 3877634048 5089394688 5816451072 6785859584 10178789376 11632902144 13571719168 20357578752 27143438336 40715157504 81430315008
• Sum of all divisors σ(n): 254074098528
• Sum of proper divisors (its aliquot sum) s(n): 172643783520
• 81430315008 is an abundant number, because the sum of its proper divisors (172643783520) is greater than itself. Its abundance is 91213468512

Bases of 81430315008

• Binary: 1001011110101101000000000000000000000₂
• Hexadecimal: 0x12F5A00000
• Base-36: 11EPI96O

Squares and roots of 81430315008

• 81430315008 squared (81430315008²) is 6630896202302110040064
• 81430315008 cubed (81430315008³) is 539955966538811715345491020480512
• The square root of 81430315008 is 285359.9744322949
• The cube root of 81430315008 is 4334.3971781287

Scales and comparisons

• 81,430,315,008 seconds is equal to 2,589 years, 12 weeks, 11 hours, 56 minutes, 48 seconds.
• To count from 1 to 81,430,315,008 would take you about five thousand, one hundred seventy-eight 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 81430315008 cubic inches would be around 361.2 feet tall.

Recreational maths with 81430315008

• 81430315008 backwards is 80051303418
• The number of decimal digits it has is: 11
• The sum of 81430315008's digits is 33
• More coming soon!