105812091021

Names of 105812091021

• Cardinal: 105812091021 can be written as One hundred five billion, eight hundred twelve million, ninety-one thousand and twenty-one.

Scientific notation

• Scientific notation: 1.05812091021 × 10¹¹

Factors of 105812091021

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 763

Divisors of 105812091021

• Number of divisors d(n): 72
• Complete list of divisors:
  1 3 7 13 21 39 49 91 147 273 331 409 637 993 1227 1911 2317 2863 4303 5317 6951 8589 12909 15951 16219 20041 30121 37219 48657 60123 90363 111657 135379 167281 210847 260533 406137 501843 632541 781599 947653 1170967 1759927 2174653 2842959 3512901 5279781 6523959 6633571 8196769 12319489 15222571 19900713 24590307 36958467 45667713 55370011 86236423 106557997 166110033 258709269 319673991 387590077 719810143 1162770231 2159430429 2713130539 5038671001 8139391617 15116013003 35270697007 105812091021
• Sum of all divisors σ(n): 177709531104
• Sum of proper divisors (its aliquot sum) s(n): 71897440083
• 105812091021 is a deficient number, because the sum of its proper divisors (71897440083) is less than itself. Its deficiency is 33914650938

Bases of 105812091021

• Binary: 1100010100010111001000110000010001101₂
• Hexadecimal: 0x18A2E4608D
• Base-36: 1CLXSBYL

Squares and roots of 105812091021

• 105812091021 squared (105812091021²) is 11196198606236388822441
• 105812091021 cubed (105812091021³) is 1184693186012278112322474099402261
• The square root of 105812091021 is 325287.7049951319
• The cube root of 105812091021 is 4729.8252884497

Scales and comparisons

• 105,812,091,021 seconds is equal to 3,364 years, 25 weeks, 5 days, 23 hours, 30 minutes, 21 seconds.
• To count from 1 to 105,812,091,021 would take you about six thousand, seven hundred twenty-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 105812091021 cubic inches would be around 394.2 feet tall.

Recreational maths with 105812091021

• 105812091021 backwards is 120190218501
• The number of decimal digits it has is: 12
• The sum of 105812091021's digits is 30
• More coming soon!