9899744988

Names of 9899744988

• Cardinal: 9899744988 can be written as Nine billion, eight hundred ninety-nine million, seven hundred forty-four thousand, nine hundred eighty-eight.

Scientific notation

• Scientific notation: 9.899744988 × 10⁹

Factors of 9899744988

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 3023

Divisors of 9899744988

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 3 4 6 7 12 14 21 28 42 49 71 83 84 98 142 147 166 196 213 249 284 294 332 426 497 498 581 588 852 994 996 1162 1491 1743 1988 2324 2857 2982 3479 3486 4067 5714 5893 5964 6958 6972 8134 8571 10437 11428 11786 12201 13916 16268 17142 17679 19999 20874 23572 24402 34284 35358 39998 41251 41748 48804 59997 70716 79996 82502 119994 123753 139993 165004 202847 237131 239988 247506 279986 288757 405694 419979 474262 495012 559972 577514 608541 711393 811388 839958 866271 948524 1155028 1217082 1419929 1422786 1659917 1679916 1732542 2434164 2839858 2845572 3319834 3465084 4259787 4979751 5679716 6639668 8519574 9939503 9959502 11619419 16836301 17039148 19879006 19919004 23238838 29818509 33672602 34858257 39758012 46477676 50508903 59637018 67345204 69716514 101017806 117854107 119274036 139433028 202035612 235708214 353562321 471416428 707124642 824978749 1414249284 1649957498 2474936247 3299914996 4949872494 9899744988
• Sum of all divisors σ(n): 27587153664
• Sum of proper divisors (its aliquot sum) s(n): 17687408676
• 9899744988 is an abundant number, because the sum of its proper divisors (17687408676) is greater than itself. Its abundance is 7787663688

Bases of 9899744988

• Binary: 1001001110000100100001111011011100₂
• Hexadecimal: 0x24E121EDC
• Base-36: 4JQ1W4C

Squares and roots of 9899744988

• 9899744988 squared (9899744988²) is 98004950827431120144
• 9899744988 cubed (9899744988³) is 970224020753047684560789838272
• The square root of 9899744988 is 99497.4622188927
• The cube root of 9899744988 is 2147.2107321871

Scales and comparisons

• 9,899,744,988 seconds is equal to 314 years, 40 weeks, 4 days, 9 hours, 9 minutes, 48 seconds.
• To count from 1 to 9,899,744,988 would take you about six hundred twenty-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 9899744988 cubic inches would be around 178.9 feet tall.

Recreational maths with 9899744988

• 9899744988 backwards is 8894479989
• The number of decimal digits it has is: 10
• The sum of 9899744988's digits is 75
• More coming soon!