18644073472

Names of 18644073472

• Cardinal: 18644073472 can be written as Eighteen billion, six hundred forty-four million, seventy-three thousand, four hundred seventy-two.

Scientific notation

• Scientific notation: 1.8644073472 × 10¹⁰

Factors of 18644073472

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 274

Divisors of 18644073472

• Number of divisors d(n): 88
• Complete list of divisors:
  1 2 4 8 16 32 43 64 86 128 172 229 256 344 458 512 688 916 1024 1376 1832 1849 2752 3664 3698 5504 7328 7396 9847 11008 14656 14792 19694 22016 29312 29584 39388 44032 58624 59168 78776 79507 117248 118336 157552 159014 234496 236672 315104 318028 423421 473344 630208 636056 846842 946688 1260416 1272112 1693684 1893376 2520832 2544224 3387368 5041664 5088448 6774736 10083328 10176896 13549472 18207103 20353792 27098944 36414206 40707584 54197888 72828412 81415168 108395776 145656824 216791552 291313648 433583104 582627296 1165254592 2330509184 4661018368 9322036736 18644073472
• Sum of all divisors σ(n): 38323934000
• Sum of proper divisors (its aliquot sum) s(n): 19679860528
• 18644073472 is an abundant number, because the sum of its proper divisors (19679860528) is greater than itself. Its abundance is 1035787056

Bases of 18644073472

• Binary: 10001010111010001011111110000000000₂
• Hexadecimal: 0x45745FC00
• Base-36: 8KC775S

Squares and roots of 18644073472

• 18644073472 squared (18644073472²) is 347601475629334134784
• 18644073472 cubed (18644073472³) is 6480707450608923047350446850048
• The square root of 18644073472 is 136543.3025527067
• The cube root of 18644073472 is 2651.6341396871

Scales and comparisons

• 18,644,073,472 seconds is equal to 592 years, 42 weeks, 5 days, 21 hours, 17 minutes, 52 seconds.
• To count from 1 to 18,644,073,472 would take you about one thousand, one hundred eighty-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 18644073472 cubic inches would be around 221 feet tall.

Recreational maths with 18644073472

• 18644073472 backwards is 27437044681
• The number of decimal digits it has is: 11
• The sum of 18644073472's digits is 46
• More coming soon!