18939765824

Names of 18939765824

• Cardinal: 18939765824 can be written as Eighteen billion, nine hundred thirty-nine million, seven hundred sixty-five thousand, eight hundred twenty-four.

Scientific notation

• Scientific notation: 1.8939765824 × 10¹⁰

Factors of 18939765824

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 37210

Divisors of 18939765824

• Number of divisors d(n): 112
• Complete list of divisors:
  1 2 4 7 8 14 16 17 28 32 34 56 64 67 68 112 119 134 136 224 238 268 272 448 469 476 536 544 938 952 1072 1088 1139 1876 1904 2144 2278 3752 3808 4288 4556 7504 7616 7973 9112 15008 15946 18224 30016 31892 36448 37117 63784 72896 74234 127568 148468 255136 259819 296936 510272 519638 593872 630989 1039276 1187744 1261978 2078552 2375488 2486839 2523956 4157104 4416923 4973678 5047912 8314208 8833846 9947356 10095824 16628416 17407873 17667692 19894712 20191648 34815746 35335384 39789424 40383296 42276263 69631492 70670768 79578848 84552526 139262984 141341536 159157696 169105052 278525968 282683072 295933841 338210104 557051936 591867682 676420208 1114103872 1183735364 1352840416 2367470728 2705680832 4734941456 9469882912 18939765824
• Sum of all divisors σ(n): 46159350912
• Sum of proper divisors (its aliquot sum) s(n): 27219585088
• 18939765824 is an abundant number, because the sum of its proper divisors (27219585088) is greater than itself. Its abundance is 8279819264

Bases of 18939765824

• Binary: 10001101000111001011110010001000000₂
• Hexadecimal: 0x468E5E440
• Base-36: 8P88WU8

Squares and roots of 18939765824

• 18939765824 squared (18939765824²) is 358714729467958398976
• 18939765824 cubed (18939765824³) is 6793972973742644187979401396224
• The square root of 18939765824 is 137621.8217580337
• The cube root of 18939765824 is 2665.5788570895

Scales and comparisons

• 18,939,765,824 seconds is equal to 602 years, 11 weeks, 5 days, 6 hours, 3 minutes, 44 seconds.
• To count from 1 to 18,939,765,824 would take you about one thousand, two hundred four 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 18939765824 cubic inches would be around 222.1 feet tall.

Recreational maths with 18939765824

• 18939765824 backwards is 42856793981
• The number of decimal digits it has is: 11
• The sum of 18939765824's digits is 62
• More coming soon!