18321830644

Names of 18321830644

• Cardinal: 18321830644 can be written as Eighteen billion, three hundred twenty-one million, eight hundred thirty thousand, six hundred forty-four.

Scientific notation

• Scientific notation: 1.8321830644 × 10¹⁰

Factors of 18321830644

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 5335

Divisors of 18321830644

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 4 13 19 26 37 38 52 74 76 97 148 194 247 388 481 494 703 962 988 1261 1406 1843 1924 2522 2812 3589 3686 5044 5167 7178 7372 9139 10334 14356 18278 20668 23959 36556 46657 47918 67171 68191 93314 95836 98173 134342 136382 186628 191179 196346 268684 272764 382358 392692 501199 764716 886483 1002398 1276249 1772966 2004796 2485327 2552498 3545932 3632401 4970654 5104996 6515587 7264802 9522781 9941308 13031174 14529604 18544363 19045562 26062348 37088726 38091124 47221213 74177452 94442426 123796153 188884852 241076719 247592306 352342897 482153438 495184612 704685794 964306876 1409371588 4580457661 9160915322 18321830644
• Sum of all divisors σ(n): 37721438720
• Sum of proper divisors (its aliquot sum) s(n): 19399608076
• 18321830644 is an abundant number, because the sum of its proper divisors (19399608076) is greater than itself. Its abundance is 1077777432

Bases of 18321830644

• Binary: 10001000100000100001111001011110100₂
• Hexadecimal: 0x44410F2F4
• Base-36: 8F0CF04

Squares and roots of 18321830644

• 18321830644 squared (18321830644²) is 335689478147417454736
• 18321830644 cubed (18321830644³) is 6150445767589721471642527729984
• The square root of 18321830644 is 135358.1569171211
• The cube root of 18321830644 is 2636.2683850991

Scales and comparisons

• 18,321,830,644 seconds is equal to 582 years, 30 weeks, 5 hours, 24 minutes, 4 seconds.
• To count from 1 to 18,321,830,644 would take you about one thousand, one hundred sixty-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 18321830644 cubic inches would be around 219.7 feet tall.

Recreational maths with 18321830644

• 18321830644 backwards is 44603812381
• The number of decimal digits it has is: 11
• The sum of 18321830644's digits is 40
• More coming soon!