18398568944

Names of 18398568944

• Cardinal: 18398568944 can be written as Eighteen billion, three hundred ninety-eight million, five hundred sixty-eight thousand, nine hundred forty-four.

Scientific notation

• Scientific notation: 1.8398568944 × 10¹⁰

Factors of 18398568944

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 809

Divisors of 18398568944

• Number of divisors d(n): 160
• Complete list of divisors:
  1 2 4 7 8 14 16 28 31 41 56 62 82 112 124 164 217 248 287 307 328 421 434 496 574 614 656 842 868 1148 1228 1271 1684 1736 2149 2296 2456 2542 2947 3368 3472 4298 4592 4912 5084 5894 6736 8596 8897 9517 10168 11788 12587 13051 17192 17261 17794 19034 20336 23576 25174 26102 34384 34522 35588 38068 47152 50348 52204 66619 69044 71176 76136 88109 91357 100696 104408 120827 129247 133238 138088 142352 152272 176218 182714 201392 208816 241654 258494 266476 276176 352436 365428 390197 483308 516988 532952 535091 704872 730856 780394 904729 966616 1033976 1065904 1070182 1409744 1461712 1560788 1809458 1933232 2067952 2140364 2731379 3121576 3618916 3745637 4006657 4280728 5299127 5462758 6243152 7237832 7491274 8013314 8561456 10598254 10925516 14475664 14982548 16026628 21196508 21851032 28046599 29965096 32053256 37093889 42393016 43702064 56093198 59930192 64106512 74187778 84786032 112186396 148375556 164272937 224372792 296751112 328545874 448745584 593502224 657091748 1149910559 1314183496 2299821118 2628366992 4599642236 9199284472 18398568944
• Sum of all divisors σ(n): 43322560512
• Sum of proper divisors (its aliquot sum) s(n): 24923991568
• 18398568944 is an abundant number, because the sum of its proper divisors (24923991568) is greater than itself. Its abundance is 6525422624

Bases of 18398568944

• Binary: 10001001000101000111110000111110000₂
• Hexadecimal: 0x448A3E1F0
• Base-36: 8GA16NK

Squares and roots of 18398568944

• 18398568944 squared (18398568944²) is 338507339187121275136
• 18398568944 cubed (18398568944³) is 6228050618084243697478888976384
• The square root of 18398568944 is 135641.3246175369
• The cube root of 18398568944 is 2639.9437996911

Scales and comparisons

• 18,398,568,944 seconds is equal to 585 years, 6 days, 9 hours, 35 minutes, 44 seconds.
• To count from 1 to 18,398,568,944 would take you about one thousand, one hundred seventy 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 18398568944 cubic inches would be around 220 feet tall.

Recreational maths with 18398568944

• 18398568944 backwards is 44986589381
• The number of decimal digits it has is: 11
• The sum of 18398568944's digits is 65
• More coming soon!