71820445827970161

Names of 71820445827970161

• Cardinal: 71820445827970161 can be written as Seventy-one quadrillion, eight hundred twenty trillion, four hundred forty-five billion, eight hundred twenty-seven million, nine hundred seventy thousand, one hundred sixty-one.

Scientific notation

• Scientific notation: 7.1820445827970161 × 10¹⁶

Factors of 71820445827970161

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 4253873

Divisors of 71820445827970161

• Number of divisors d(n): 45
• Complete list of divisors:
  1 3 7 9 21 27 49 63 81 147 189 441 567 1323 3969 4253863 12761589 29777041 38284767 89331123 114854301 208439287 267993369 344562903 625317861 803980107 1875953583 2411940321 5627860749 16883582247 18095350422769 54286051268307 126667452959383 162858153804921 380002358878149 488574461414763 886672170715681 1140007076634447 1465723384244289 2660016512147043 3420021229903341 7980049536441129 10260063689710023 23940148609323387 71820445827970161
• Sum of all divisors σ(n): 124803661204737801
• Sum of proper divisors (its aliquot sum) s(n): 52983215376767640
• 71820445827970161 is a deficient number, because the sum of its proper divisors (52983215376767640) is less than itself. Its deficiency is 18837230451202521

Bases of 71820445827970161

• Binary: 11111111001010000101000010100001001011111011010001110001₂
• Hexadecimal: 0xFF2850A12FB471
• Base-36: JN681BT0I29

Squares and roots of 71820445827970161

• 71820445827970161 squared (71820445827970161²) is 5158176438928396505017877506365921
• 71820445827970161 cubed (71820445827970161³) is 370462531503168936732779817194180125878915135283281
• 71820445827970161 is a perfect square number. Its square root is 267993369
• The cube root of 71820445827970161 is 415670.6547693213

Scales and comparisons

• 71,820,445,827,970,161 seconds is equal to 2,283,668,022 years, 5 weeks, 2 days, 22 hours, 49 minutes, 21 seconds.
• To count from 1 to 71,820,445,827,970,161 would take you about six billion, eight hundred fifty-one million, four thousand and sixty-six 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 71820445827970161 cubic inches would be around 34639.2 feet tall.

Recreational maths with 71820445827970161

• 71820445827970161 backwards is 16107972854402817
• The number of decimal digits it has is: 17
• The sum of 71820445827970161's digits is 72
• More coming soon!