990978291225

Names of 990978291225

• Cardinal: 990978291225 can be written as Nine hundred ninety billion, nine hundred seventy-eight million, two hundred ninety-one thousand, two hundred twenty-five.

Scientific notation

• Scientific notation: 9.90978291225 × 10¹¹

Factors of 990978291225

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 10078

Divisors of 990978291225

• Number of divisors d(n): 192
• Complete list of divisors:
  1 3 5 9 13 15 25 27 39 41 45 65 75 117 123 135 195 205 225 283 325 351 369 533 585 615 675 849 975 1025 1107 1415 1599 1755 1845 2547 2665 2925 3075 3679 4245 4797 5535 7075 7641 7995 8775 9225 9733 11037 11603 12735 13325 14391 18395 21225 23985 27675 29199 33111 34809 38205 39975 48665 55185 58015 63675 71955 87597 91975 99333 104427 119925 126529 145995 150839 165555 174045 191025 243325 262791 275925 290075 313281 359775 379587 399053 437985 452517 496665 522135 632645 729975 754195 827775 870225 1138761 1197159 1313955 1357551 1566405 1897935 1995265 2189925 2262585 2483325 2610675 2754439 3163225 3416283 3591477 3770975 4072653 5187689 5693805 5985795 6569775 6787755 7832025 8263317 9489675 9976325 10774431 11312925 13772195 15563067 17081415 17957385 20363265 24789951 25938445 28469025 29928975 33938775 35807707 41316585 46689201 53872155 68860975 74369853 77815335 85407075 89786925 101816325 107423121 112931999 123949755 129692225 140067603 179038535 206582925 233446005 269360775 322269363 338795997 371849265 389076675 537115605 564659995 619748775 700338015 895192675 966808089 1016387991 1167230025 1468115987 1611346815 1693979985 1859246325 2685578025 2823299975 3049163973 3501690075 4404347961 4834040445 5081939955 7340579935 8056734075 8469899925 13213043883 15245819865 22021739805 24170202225 25409699775 36702899675 39639131649 66065219415 76229099325 110108699025 198195658245 330326097075 990978291225
• Sum of all divisors σ(n): 2015620158720
• Sum of proper divisors (its aliquot sum) s(n): 1024641867495
• 990978291225 is an abundant number, because the sum of its proper divisors (1024641867495) is greater than itself. Its abundance is 33663576270

Bases of 990978291225

• Binary: 1110011010111010111010001011011000011001₂
• Hexadecimal: 0xE6BAE8B619
• Base-36: CN8YVZ89

Squares and roots of 990978291225

• 990978291225 squared (990978291225²) is 982037973679220912000625
• 990978291225 cubed (990978291225³) is 973178313074695865663665458632015625
• The square root of 990978291225 is 995478.9255554333
• The cube root of 990978291225 is 9969.8367467091

Scales and comparisons

• 990,978,291,225 seconds is equal to 31,510 years, 2 weeks, 2 days, 3 hours, 33 minutes, 45 seconds.
• To count from 1 to 990,978,291,225 would take you about sixty-three thousand and twenty 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 990978291225 cubic inches would be around 830.8 feet tall.

Recreational maths with 990978291225

• 990978291225 backwards is 522192879099
• The number of decimal digits it has is: 12
• The sum of 990978291225's digits is 63
• More coming soon!