18385948672

Names of 18385948672

• Cardinal: 18385948672 can be written as Eighteen billion, three hundred eighty-five million, nine hundred forty-eight thousand, six hundred seventy-two.

Scientific notation

• Scientific notation: 1.8385948672 × 10¹⁰

Factors of 18385948672

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 16
• Sum of prime factors: 590

Divisors of 18385948672

• Number of divisors d(n): 208
• Complete list of divisors:
  1 2 4 7 8 13 14 16 26 28 32 52 56 64 91 104 107 112 128 182 208 214 224 256 364 416 428 448 461 512 728 749 832 856 896 922 1024 1391 1456 1498 1664 1712 1792 1844 2048 2782 2912 2996 3227 3328 3424 3584 3688 4096 5564 5824 5992 5993 6454 6656 6848 7168 7376 9737 11128 11648 11984 11986 12908 13312 13696 14336 14752 19474 22256 23296 23968 23972 25816 26624 27392 28672 29504 38948 41951 44512 46592 47936 47944 49327 51632 53248 54784 59008 77896 83902 89024 93184 95872 95888 98654 103264 109568 118016 155792 167804 178048 186368 191744 191776 197308 206528 219136 236032 311584 335608 345289 356096 372736 383488 383552 394616 413056 438272 472064 623168 641251 671216 690578 712192 766976 767104 789232 826112 944128 1246336 1282502 1342432 1381156 1424384 1533952 1534208 1578464 1652224 1888256 2492672 2565004 2684864 2762312 2848768 3067904 3068416 3156928 3304448 4488757 4985344 5130008 5369728 5524624 5697536 6136832 6313856 6608896 8977514 9970688 10260016 10739456 11049248 12273664 12627712 13217792 17955028 19941376 20520032 21478912 22098496 24547328 25255424 35910056 39882752 41040064 42957824 44196992 50510848 71820112 82080128 85915648 88393984 101021696 143640224 164160256 171831296 176787968 202043392 287280448 328320512 353575936 574560896 656641024 707151872 1149121792 1313282048 1414303744 2298243584 2626564096 4596487168 9192974336 18385948672
• Sum of all divisors σ(n): 45774191232
• Sum of proper divisors (its aliquot sum) s(n): 27388242560
• 18385948672 is an abundant number, because the sum of its proper divisors (27388242560) is greater than itself. Its abundance is 9002293888

Bases of 18385948672

• Binary: 10001000111111000110101000000000000₂
• Hexadecimal: 0x447E35000
• Base-36: 8G2IOSG

Squares and roots of 18385948672

• 18385948672 squared (18385948672²) is 338043108569418563584
• 18385948672 cubed (18385948672³) is 6215243243080653058939392360448
• The square root of 18385948672 is 135594.7958883379
• The cube root of 18385948672 is 2639.3400493023

Scales and comparisons

• 18,385,948,672 seconds is equal to 584 years, 32 weeks, 7 hours, 57 minutes, 52 seconds.
• To count from 1 to 18,385,948,672 would take you about one thousand, one hundred sixty-nine 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 18385948672 cubic inches would be around 219.9 feet tall.

Recreational maths with 18385948672

• 18385948672 backwards is 27684958381
• The number of decimal digits it has is: 11
• The sum of 18385948672's digits is 61
• More coming soon!