16391868771920

Names of 16391868771920

• Cardinal: 16391868771920 can be written as Sixteen trillion, three hundred ninety-one billion, eight hundred sixty-eight million, seven hundred seventy-one thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 1.639186877192 × 10¹³

Factors of 16391868771920

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 9685

Divisors of 16391868771920

• Number of divisors d(n): 90
• Complete list of divisors:
  1 2 4 5 8 10 16 20 40 47 80 94 188 235 376 470 752 940 1880 2209 3760 4418 8836 9631 11045 17672 19262 22090 35344 38524 44180 48155 77048 88360 96310 154096 176720 192620 385240 452657 770480 905314 1810628 2263285 3621256 4526570 7242512 9053140 18106280 21274879 36212560 42549758 85099516 92756161 106374395 170199032 185512322 212748790 340398064 371024644 425497580 463780805 742049288 850995160 927561610 1484098576 1701990320 1855123220 3710246440 4359539567 7420492880 8719079134 17438158268 21797697835 34876316536 43595395670 69752633072 87190791340 174381582680 204898359649 348763165360 409796719298 819593438596 1024491798245 1639186877192 2048983596490 3278373754384 4097967192980 8195934385960 16391868771920
• Sum of all divisors σ(n): 38943265432986
• Sum of proper divisors (its aliquot sum) s(n): 22551396661066
• 16391868771920 is an abundant number, because the sum of its proper divisors (22551396661066) is greater than itself. Its abundance is 6159527889146

Bases of 16391868771920

• Binary: 11101110100010000111100000111110111001010000₂
• Hexadecimal: 0xEE88783EE50
• Base-36: 5T6BJFVWW

Squares and roots of 16391868771920

• 16391868771920 squared (16391868771920²) is 268693361835846088980486400
• 16391868771920 cubed (16391868771920³) is 4404386327099206627210700650412261888000
• The square root of 16391868771920 is 4048687.2899644893
• The cube root of 16391868771920 is 25402.4822278721

Scales and comparisons

• 16,391,868,771,920 seconds is equal to 521,210 years, 37 weeks, 4 days, 9 hours, 5 minutes, 20 seconds.
• To count from 1 to 16,391,868,771,920 would take you about one million, three hundred three thousand and twenty-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 16391868771920 cubic inches would be around 2116.9 feet tall.

Recreational maths with 16391868771920

• 16391868771920 backwards is 02917786819361
• The number of decimal digits it has is: 14
• The sum of 16391868771920's digits is 68
• More coming soon!