20816084640

Names of 20816084640

• Cardinal: 20816084640 can be written as Twenty billion, eight hundred sixteen million, eighty-four thousand, six hundred forty.

Scientific notation

• Scientific notation: 2.081608464 × 10¹⁰

Factors of 20816084640

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 12343

Divisors of 20816084640

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 13 15 16 20 24 26 30 32 39 40 48 52 60 65 78 80 96 104 120 130 156 160 195 208 240 260 277 312 390 416 480 520 554 624 780 831 1040 1108 1248 1385 1560 1662 2080 2216 2770 3120 3324 3601 4155 4432 5540 6240 6648 7202 8310 8864 10803 11080 12043 13296 14404 16620 18005 21606 22160 24086 26592 28808 33240 36010 36129 43212 44320 48172 54015 57616 60215 66480 72020 72258 86424 96344 108030 115232 120430 132960 144040 144516 156559 172848 180645 192688 216060 240860 288080 289032 313118 345696 361290 385376 432120 469677 481720 576160 578064 626236 722580 782795 864240 939354 963440 1156128 1252472 1445160 1565590 1728480 1878708 1926880 2348385 2504944 2890320 3131180 3335911 3757416 4696770 5009888 5780640 6262360 6671822 7514832 9393540 10007733 12524720 13343644 15029664 16679555 18787080 20015466 25049440 26687288 33359110 37574160 40030932 43366843 50038665 53374576 66718220 75148320 80061864 86733686 100077330 106749152 130100529 133436440 160123728 173467372 200154660 216834215 260201058 266872880 320247456 346934744 400309320 433668430 520402116 533745760 650502645 693869488 800618640 867336860 1040804232 1301005290 1387738976 1601237280 1734673720 2081608464 2602010580 3469347440 4163216928 5204021160 6938694880 10408042320 20816084640
• Sum of all divisors σ(n): 70875374976
• Sum of proper divisors (its aliquot sum) s(n): 50059290336
• 20816084640 is an abundant number, because the sum of its proper divisors (50059290336) is greater than itself. Its abundance is 29243205696

Bases of 20816084640

• Binary: 10011011000101111000011111010100000₂
• Hexadecimal: 0x4D8BC3EA0
• Base-36: 9K9CXPC

Squares and roots of 20816084640

• 20816084640 squared (20816084640²) is 433309379739643929600
• 20816084640 cubed (20816084640³) is 9019804723966329202015801344000
• The square root of 20816084640 is 144277.8036982821
• The cube root of 20816084640 is 2750.8464453341

Scales and comparisons

• 20,816,084,640 seconds is equal to 661 years, 46 weeks, 21 hours, 44 minutes.
• To count from 1 to 20,816,084,640 would take you about one thousand, three hundred twenty-three 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 20816084640 cubic inches would be around 229.2 feet tall.

Recreational maths with 20816084640

• 20816084640 backwards is 04648061802
• 20816084640 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 20816084640's digits is 39
• More coming soon!