72221221680

Names of 72221221680

• Cardinal: 72221221680 can be written as Seventy-two billion, two hundred twenty-one million, two hundred twenty-one thousand, six hundred eighty.

Scientific notation

• Scientific notation: 7.222122168 × 10¹⁰

Factors of 72221221680

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 12789

Divisors of 72221221680

• Number of divisors d(n): 160
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 15 16 20 24 30 40 48 53 60 80 106 120 159 212 240 265 318 424 463 530 636 795 848 926 1060 1272 1389 1590 1852 2120 2315 2544 2778 3180 3704 4240 4630 5556 6360 6945 7408 9260 11112 12263 12720 13890 18520 22224 24526 24539 27780 36789 37040 49052 49078 55560 61315 73578 73617 98104 98156 111120 122630 122695 147156 147234 183945 196208 196312 245260 245390 294312 294468 367890 368085 392624 490520 490780 588624 588936 649939 735780 736170 981040 981560 1177872 1299878 1471560 1472340 1949817 1963120 2599756 2943120 2944680 3249695 3899634 5199512 5677769 5889360 6499390 7799268 9749085 10399024 11355538 12998780 15598536 17033307 19498170 22711076 25997560 28388845 31197072 34066614 38996340 45422152 51995120 56777690 68133228 77992680 85166535 90844304 113555380 136266456 155985360 170333070 227110760 272532912 300921757 340666140 454221520 601843514 681332280 902765271 1203687028 1362664560 1504608785 1805530542 2407374056 3009217570 3611061084 4513826355 4814748112 6018435140 7222122168 9027652710 12036870280 14444244336 18055305420 24073740560 36110610840 72221221680
• Sum of all divisors σ(n): 228621367296
• Sum of proper divisors (its aliquot sum) s(n): 156400145616
• 72221221680 is an abundant number, because the sum of its proper divisors (156400145616) is greater than itself. Its abundance is 84178923936

Bases of 72221221680

• Binary: 1000011010000101110000110001100110000₂
• Hexadecimal: 0x10D0B86330
• Base-36: X6ENFAO

Squares and roots of 72221221680

• 72221221680 squared (72221221680²) is 5215904860951702022400
• 72221221680 cubed (72221221680³) is 376699021224582447533054725632000
• The square root of 72221221680 is 268740.0634070031
• The cube root of 72221221680 is 4164.4240271867

Scales and comparisons

• 72,221,221,680 seconds is equal to 2,296 years, 21 weeks, 2 days, 18 hours, 28 minutes.
• To count from 1 to 72,221,221,680 would take you about four thousand, five hundred ninety-two 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 72221221680 cubic inches would be around 347 feet tall.

Recreational maths with 72221221680

• 72221221680 backwards is 08612212227
• The number of decimal digits it has is: 11
• The sum of 72221221680's digits is 33
• More coming soon!