18008709888

Names of 18008709888

• Cardinal: 18008709888 can be written as Eighteen billion, eight million, seven hundred nine thousand, eight hundred eighty-eight.

Scientific notation

• Scientific notation: 1.8008709888 × 10¹⁰

Factors of 18008709888

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 24800

Divisors of 18008709888

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 3 4 6 8 12 13 16 24 26 32 39 48 52 64 73 78 96 104 128 146 156 192 208 219 256 292 312 384 416 438 584 624 768 832 876 949 1168 1248 1664 1752 1898 2336 2496 2847 3328 3504 3796 4672 4992 5694 7008 7592 9344 9984 11388 14016 15184 18688 22776 24709 28032 30368 45552 49418 56064 60736 74127 91104 98836 121472 148254 182208 197672 242944 296508 321217 364416 395344 593016 642434 728832 790688 963651 1186032 1284868 1581376 1803757 1927302 2372064 2569736 3162752 3607514 3854604 4744128 5139472 5411271 6325504 7215028 7709208 9488256 10278944 10822542 14430056 15418416 18976512 20557888 21645084 23448841 28860112 30836832 41115776 43290168 46897682 57720224 61673664 70346523 82231552 86580336 93795364 115440448 123347328 140693046 173160672 187590728 230880896 246694656 281386092 346321344 375181456 461761792 562772184 692642688 750362912 1125544368 1385285376 1500725824 2251088736 3001451648 4502177472 6002903296 9004354944 18008709888
• Sum of all divisors σ(n): 52325500640
• Sum of proper divisors (its aliquot sum) s(n): 34316790752
• 18008709888 is an abundant number, because the sum of its proper divisors (34316790752) is greater than itself. Its abundance is 16308080864

Bases of 18008709888

• Binary: 10000110001011001110001101100000000₂
• Hexadecimal: 0x431671B00
• Base-36: 89TX5HC

Squares and roots of 18008709888

• 18008709888 squared (18008709888²) is 324313631830148972544
• 18008709888 cubed (18008709888³) is 5840470108352795338366173315072
• The square root of 18008709888 is 134196.5345603231
• The cube root of 18008709888 is 2621.1640364913

Scales and comparisons

• 18,008,709,888 seconds is equal to 572 years, 32 weeks, 2 days, 3 hours, 24 minutes, 48 seconds.
• To count from 1 to 18,008,709,888 would take you about one thousand, one hundred forty-five 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 18008709888 cubic inches would be around 218.4 feet tall.

Recreational maths with 18008709888

• 18008709888 backwards is 88890780081
• The number of decimal digits it has is: 11
• The sum of 18008709888's digits is 57
• More coming soon!