20720450916

Names of 20720450916

• Cardinal: 20720450916 can be written as Twenty billion, seven hundred twenty million, four hundred fifty thousand, nine hundred sixteen.

Scientific notation

• Scientific notation: 2.0720450916 × 10¹⁰

Factors of 20720450916

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 743

Divisors of 20720450916

• Number of divisors d(n): 135
• Complete list of divisors:
  1 2 3 4 6 9 11 12 18 22 27 33 36 44 54 66 81 99 108 121 132 162 198 242 297 324 363 396 484 594 726 727 891 1089 1188 1452 1454 1782 2178 2181 2908 3267 3564 4356 4362 6534 6543 7997 8724 9801 13068 13086 15994 19602 19629 23991 26172 31988 39204 39258 47982 58887 71973 78516 87967 95964 117774 143946 175934 215919 235548 263901 287892 351868 431838 527802 528529 647757 791703 863676 1055604 1057058 1295514 1583406 1585587 2114116 2375109 2591028 3166812 3171174 4750218 4756761 5813819 6342348 7125327 9500436 9513522 11627638 14250654 14270283 17441457 19027044 23255276 28501308 28540566 34882914 42810849 52324371 57081132 63952009 69765828 85621698 104648742 127904018 156973113 171243396 191856027 209297484 255808036 313946226 383712054 470919339 575568081 627892452 767424108 941838678 1151136162 1726704243 1883677356 2302272324 3453408486 5180112729 6906816972 10360225458 20720450916
• Sum of all divisors σ(n): 59621330307
• Sum of proper divisors (its aliquot sum) s(n): 38900879391
• 20720450916 is an abundant number, because the sum of its proper divisors (38900879391) is greater than itself. Its abundance is 18180428475

Bases of 20720450916

• Binary: 10011010011000010001111110101100100₂
• Hexadecimal: 0x4D308FD64
• Base-36: 9IOF690

Squares and roots of 20720450916

• 20720450916 squared (20720450916²) is 429337086162365239056
• 20720450916 cubed (20720450916³) is 8896058020245751742324454175296
• 20720450916 is a perfect square number. Its square root is 143946
• The cube root of 20720450916 is 2746.6273106487

Scales and comparisons

• 20,720,450,916 seconds is equal to 658 years, 44 weeks, 48 minutes, 36 seconds.
• To count from 1 to 20,720,450,916 would take you about one thousand, three hundred seventeen 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 20720450916 cubic inches would be around 228.9 feet tall.

Recreational maths with 20720450916

• 20720450916 backwards is 61905402702
• 20720450916 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 20720450916's digits is 36
• More coming soon!