18443821380

Names of 18443821380

• Cardinal: 18443821380 can be written as Eighteen billion, four hundred forty-three million, eight hundred twenty-one thousand, three hundred eighty.

Scientific notation

• Scientific notation: 1.844382138 × 10¹⁰

Factors of 18443821380

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 78247

Divisors of 18443821380

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 3 4 5 6 10 12 15 20 30 31 60 62 93 124 127 155 186 254 310 372 381 465 508 620 635 762 930 1270 1524 1860 1905 2540 3810 3937 7620 7874 11811 15748 19685 23622 39370 47244 59055 78079 78740 118110 156158 234237 236220 312316 390395 468474 780790 936948 1171185 1561580 2342370 2420449 4684740 4840898 7261347 9681796 9916033 12102245 14522694 19832066 24204490 29045388 29748099 36306735 39664132 48408980 49580165 59496198 72613470 99160330 118992396 145226940 148740495 198320660 297480990 307397023 594961980 614794046 922191069 1229588092 1536985115 1844382138 3073970230 3688764276 4610955345 6147940460 9221910690 18443821380
• Sum of all divisors σ(n): 53729034240
• Sum of proper divisors (its aliquot sum) s(n): 35285212860
• 18443821380 is an abundant number, because the sum of its proper divisors (35285212860) is greater than itself. Its abundance is 16841391480

Bases of 18443821380

• Binary: 10001001011010101100110000101000100₂
• Hexadecimal: 0x44B566144
• Base-36: 8H0Z3NO

Squares and roots of 18443821380

• 18443821380 squared (18443821380²) is 340174547097345104400
• 18443821380 cubed (18443821380³) is 6274118584685830577771052072000
• The square root of 18443821380 is 135808.0313530831
• The cube root of 18443821380 is 2642.1063968447

Scales and comparisons

• 18,443,821,380 seconds is equal to 586 years, 23 weeks, 5 days, 3 hours, 43 minutes.
• To count from 1 to 18,443,821,380 would take you about one thousand, one hundred seventy-two 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 18443821380 cubic inches would be around 220.2 feet tall.

Recreational maths with 18443821380

• 18443821380 backwards is 08312834481
• The number of decimal digits it has is: 11
• The sum of 18443821380's digits is 42
• More coming soon!