18478861499803040

Names of 18478861499803040

• Cardinal: 18478861499803040 can be written as Eighteen quadrillion, four hundred seventy-eight trillion, eight hundred sixty-one billion, four hundred ninety-nine million, eight hundred three thousand and forty.

Scientific notation

• Scientific notation: 1.847886149980304 × 10¹⁶

Factors of 18478861499803040

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 4535144

Divisors of 18478861499803040

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 4 5 7 8 10 14 16 20 28 32 35 40 49 56 70 80 98 112 140 160 196 224 245 280 392 490 560 784 980 1120 1568 1960 3920 7840 598777 1197554 2395108 2993885 3936353 4191439 4790216 5987770 7872706 8382878 9580432 11975540 15745412 16765756 19160864 19681765 20957195 23951080 27554471 29340073 31490824 33531512 39363530 41914390 47902160 55108942 58680146 62981648 67063024 78727060 83828780 95804320 110217884 117360292 125963296 134126048 137772355 146700365 157454120 167657560 192881297 220435768 234720584 275544710 293400730 314908240 335315120 385762594 440871536 469441168 551089420 586801460 629816480 670630240 771525188 881743072 938882336 964406485 1102178840 1173602920 1543050376 1928812970 2204357680 2347205840 3086100752 3857625940 4408715360 4694411680 6172201504 7715251880 15430503760 30861007520 2356997640281 4713995280562 9427990561124 11784988201405 16498983481967 18855981122248 23569976402810 32997966963934 37711962244496 47139952805620 65995933927868 75423924488992 82494917409835 94279905611240 115492884373769 131991867855736 164989834819670 188559811222480 230985768747538 263983735711472 329979669639340 377119622444960 461971537495076 527967471422944 577464421868845 659959339278680 923943074990152 1154928843737690 1319918678557360 1847886149980304 2309857687475380 2639837357114720 3695772299960608 4619715374950760 9239430749901520 18478861499803040
• Sum of all divisors σ(n): 50783968871426952
• Sum of proper divisors (its aliquot sum) s(n): 32305107371623912
• 18478861499803040 is an abundant number, because the sum of its proper divisors (32305107371623912) is greater than itself. Its abundance is 13826245871820872

Bases of 18478861499803040

• Binary: 1000001101001100110110100110111100011001010010110100000₂
• Hexadecimal: 0x41A66D378CA5A0
• Base-36: 51Y7JS2X128

Squares and roots of 18478861499803040

• 18478861499803040 squared (18478861499803040²) is 341468322328903056877958793241600
• 18478861499803040 cubed (18478861499803040³) is 6309945834885901434208522196935979674483134464000
• The square root of 18478861499803040 is 135936976.2051629571
• The cube root of 18478861499803040 is 264377.8522448901

Scales and comparisons

• 18,478,861,499,803,040 seconds is equal to 587,570,636 years, 42 weeks, 5 days, 6 hours, 37 minutes, 20 seconds.
• To count from 1 to 18,478,861,499,803,040 would take you about one billion, seven hundred sixty-two million, seven hundred eleven thousand, nine hundred ten 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 18478861499803040 cubic inches would be around 22031.5 feet tall.

Recreational maths with 18478861499803040

• 18478861499803040 backwards is 04030899416887481
• 18478861499803040 is a Harshad number.
• The number of decimal digits it has is: 17
• The sum of 18478861499803040's digits is 80
• More coming soon!