18129989048265520

Names of 18129989048265520

• Cardinal: 18129989048265520 can be written as Eighteen quadrillion, one hundred twenty-nine trillion, nine hundred eighty-nine billion, forty-eight million, two hundred sixty-five thousand, five hundred twenty.

Scientific notation

• Scientific notation: 1.812998904826552 × 10¹⁶

Factors of 18129989048265520

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 16267568

Divisors of 18129989048265520

• Number of divisors d(n): 80
• Complete list of divisors:
  1 2 4 5 8 10 16 20 40 80 151 302 604 755 1208 1510 2416 3020 6040 12080 92789 185578 371156 463945 742312 927890 1484624 1855780 3711560 7423120 14011139 16174621 28022278 32349242 56044556 64698484 70055695 80873105 112089112 129396968 140111390 161746210 224178224 258793936 280222780 323492420 560445560 646984840 1120891120 1293969680 2442367771 4884735542 9769471084 12211838855 19538942168 24423677710 39077884336 48847355420 97694710840 195389421680 1500826907969 3001653815938 6003307631876 7504134539845 12006615263752 15008269079690 24013230527504 30016538159380 60033076318760 120066152637520 226624863103319 453249726206638 906499452413276 1133124315516595 1812998904826552 2266248631033190 3625997809653104 4532497262066380 9064994524132760 18129989048265520
• Sum of all divisors σ(n): 42431838254343360
• Sum of proper divisors (its aliquot sum) s(n): 24301849206077840
• 18129989048265520 is an abundant number, because the sum of its proper divisors (24301849206077840) is greater than itself. Its abundance is 6171860157812320

Bases of 18129989048265520

• Binary: 1000000011010010010000100000101000000001110101100110000₂
• Hexadecimal: 0x4069210500EB30
• Base-36: 4YIJLZKW3SG

Squares and roots of 18129989048265520

• 18129989048265520 squared (18129989048265520²) is 328696502890227695688120420870400
• 18129989048265520 cubed (18129989048265520³) is 5959263997603003964499313311844612361528708608000
• The square root of 18129989048265520 is 134647647.7635815217
• The cube root of 18129989048265520 is 262703.4929340313

Scales and comparisons

• 18,129,989,048,265,520 seconds is equal to 576,477,571 years, 51 weeks, 5 days, 18 hours, 38 minutes, 40 seconds.
• To count from 1 to 18,129,989,048,265,520 would take you about one billion, seven hundred twenty-nine million, four hundred thirty-two thousand, seven hundred fifteen 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 18129989048265520 cubic inches would be around 21892 feet tall.

Recreational maths with 18129989048265520

• 18129989048265520 backwards is 02556284098992181
• The number of decimal digits it has is: 17
• The sum of 18129989048265520's digits is 79
• More coming soon!