20997387480

Names of 20997387480

• Cardinal: 20997387480 can be written as Twenty billion, nine hundred ninety-seven million, three hundred eighty-seven thousand, four hundred eighty.

Scientific notation

• Scientific notation: 2.099738748 × 10¹⁰

Factors of 20997387480

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 19589

Divisors of 20997387480

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 15 17 20 24 30 31 34 40 51 60 62 68 85 93 102 120 124 136 155 170 186 204 248 255 289 310 340 372 408 465 510 527 578 620 680 744 867 930 1020 1054 1156 1240 1445 1581 1734 1860 2040 2108 2312 2635 2890 3162 3468 3720 4216 4335 5270 5780 6324 6936 7905 8670 8959 10540 11560 12648 15810 17340 17918 19531 21080 26877 31620 34680 35836 39062 44795 53754 58593 63240 71672 78124 89590 97655 107508 117186 134385 156248 179180 195310 215016 234372 268770 292965 332027 358360 390620 468744 537540 585930 605461 664054 781240 996081 1075080 1171860 1210922 1328108 1660135 1816383 1992162 2343720 2421844 2656216 3027305 3320270 3632766 3984324 4843688 4980405 5644459 6054610 6640540 7265532 7968648 9081915 9960810 10292837 11288918 12109220 13281080 14531064 16933377 18163830 19921620 20585674 22577836 24218440 28222295 30878511 33866754 36327660 39843240 41171348 45155672 51464185 56444590 61757022 67733508 72655320 82342696 84666885 102928370 112889180 123514044 135467016 154392555 169333770 174978229 205856740 225778360 247028088 308785110 338667540 349956458 411713480 524934687 617570220 677335080 699912916 874891145 1049869374 1235140440 1399825832 1749782290 2099738748 2624673435 3499564580 4199477496 5249346870 6999129160 10498693740 20997387480
• Sum of all divisors σ(n): 69077652480
• Sum of proper divisors (its aliquot sum) s(n): 48080265000
• 20997387480 is an abundant number, because the sum of its proper divisors (48080265000) is greater than itself. Its abundance is 27082877520

Bases of 20997387480

• Binary: 10011100011100010101011010011011000₂
• Hexadecimal: 0x4E38AB4D8
• Base-36: 9N9AVVC

Squares and roots of 20997387480

• 20997387480 squared (20997387480²) is 440890280985260750400
• 20997387480 cubed (20997387480³) is 9257544066013596144984364992000
• The square root of 20997387480 is 144904.7531311517
• The cube root of 20997387480 is 2758.8097629923

Scales and comparisons

• 20,997,387,480 seconds is equal to 667 years, 33 weeks, 6 days, 7 hours, 38 minutes.
• To count from 1 to 20,997,387,480 would take you about one thousand, three hundred thirty-five 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 20997387480 cubic inches would be around 229.9 feet tall.

Recreational maths with 20997387480

• 20997387480 backwards is 08478379902
• The number of decimal digits it has is: 11
• The sum of 20997387480's digits is 57
• More coming soon!