72013817720

Names of 72013817720

• Cardinal: 72013817720 can be written as Seventy-two billion, thirteen million, eight hundred seventeen thousand, seven hundred twenty.

Scientific notation

• Scientific notation: 7.201381772 × 10¹⁰

Factors of 72013817720

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 46460

Divisors of 72013817720

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 4 5 8 10 13 20 26 40 52 65 104 130 260 520 3203 6406 12812 16015 25624 32030 41639 43237 64060 83278 86474 128120 166556 172948 208195 216185 333112 345896 416390 432370 562081 832780 864740 1124162 1665560 1729480 2248324 2810405 4496648 5620810 11241620 22483240 138488111 276976222 553952444 692440555 1107904888 1384881110 1800345443 2769762220 3600690886 5539524440 7201381772 9001727215 14402763544 18003454430 36006908860 72013817720
• Sum of all divisors σ(n): 174553535520
• Sum of proper divisors (its aliquot sum) s(n): 102539717800
• 72013817720 is an abundant number, because the sum of its proper divisors (102539717800) is greater than itself. Its abundance is 30525900080

Bases of 72013817720

• Binary: 1000011000100010110111010011101111000₂
• Hexadecimal: 0x10C45BA778
• Base-36: X2Z61DK

Squares and roots of 72013817720

• 72013817720 squared (72013817720²) is 5185989942609385998400
• 72013817720 cubed (72013817720³) is 373462934424825584449897811648000
• The square root of 72013817720 is 268353.9038657719
• The cube root of 72013817720 is 4160.4337588573

Scales and comparisons

• 72,013,817,720 seconds is equal to 2,289 years, 42 weeks, 3 days, 6 hours, 15 minutes, 20 seconds.
• To count from 1 to 72,013,817,720 would take you about four thousand, five hundred seventy-nine 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 72013817720 cubic inches would be around 346.7 feet tall.

Recreational maths with 72013817720

• 72013817720 backwards is 02771831027
• The number of decimal digits it has is: 11
• The sum of 72013817720's digits is 38
• More coming soon!