18378926690978672064

Names of 18378926690978672064

• Cardinal: 18378926690978672064 can be written as Eighteen quintillion, three hundred seventy-eight quadrillion, nine hundred twenty-six trillion, six hundred ninety billion, nine hundred seventy-eight million, six hundred seventy-two thousand and sixty-four.

Scientific notation

• Scientific notation: 1.8378926690978672064 × 10¹⁹

Factors of 18378926690978672064

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 219922

Divisors of 18378926690978672064

• Number of divisors d(n): 84
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 24 27 32 36 48 54 64 72 96 108 144 192 216 288 432 576 864 1728 219917 439834 659751 879668 1319502 1759336 1979253 2639004 3518672 3958506 5278008 5937759 7037344 7917012 10556016 11875518 14074688 15834024 21112032 23751036 31668048 42224064 47502072 63336096 95004144 126672192 190008288 380016576 48363486889 96726973778 145090460667 193453947556 290180921334 386907895112 435271382001 580361842668 773815790224 870542764002 1160723685336 1305814146003 1547631580448 1741085528004 2321447370672 2611628292006 3095263160896 3482171056008 4642894741344 5223256584012 6964342112016 9285789482688 10446513168024 13928684224032 20893026336048 27857368448064 41786052672096 83572105344192
• Sum of all divisors σ(n): 18379088806503907432
• Sum of proper divisors (its aliquot sum) s(n): 162115525235368
• 18378926690978672064 is a deficient number, because the sum of its proper divisors (162115525235368) is less than itself. Its deficiency is 18378764575453436696

Bases of 18378926690978672064

• Binary: 1111111100001111000100000111001100100000101110101010110111000000₂
• Hexadecimal: 0xFF0F107320BAADC0
• Base-36: 3VMU9RUN3RAO0

Squares and roots of 18378926690978672064

• 18378926690978672064 squared (18378926690978672064²) is 337784946312368240336571775328854020096
• 18378926690978672064 cubed (18378926690978672064³) is 6208124765591182420025808199190399431101404604842049798144
• The square root of 18378926690978672064 is 4287065043.9407461903
• 18378926690978672064 is a perfect cube number. Its cube root is 2639004

Scales and comparisons

• 18,378,926,690,978,672,064 seconds is equal to 293,274,701,009 years, 3 weeks, 3 days, 15 hours, 30 minutes, 7 seconds.
• To count from 1 to 18,378,926,690,978,672,064 would take you about two hundred ninety-three billion, two hundred seventy-four million, seven hundred one thousand and nine 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 18378926690978672064 cubic inches would be around 219917 feet tall.

Recreational maths with 18378926690978672064

• 18378926690978672064 backwards is 46027687909662987381
• 18378926690978672064 is a Harshad number.
• The number of decimal digits it has is: 20
• The sum of 18378926690978672064's digits is 108
• More coming soon!