990517702005

Names of 990517702005

• Cardinal: 990517702005 can be written as Nine hundred ninety billion, five hundred seventeen million, seven hundred two thousand and five.

Scientific notation

• Scientific notation: 9.90517702005 × 10¹¹

Factors of 990517702005

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 212

Divisors of 990517702005

• Number of divisors d(n): 128
• Complete list of divisors:
  1 3 5 9 13 15 27 39 45 65 81 117 135 191 195 243 351 405 573 585 729 955 1053 1215 1719 1755 2187 2483 2865 3159 3645 5157 5265 7449 8595 9477 10935 12415 15471 15795 22347 25785 28431 36481 37245 46413 47385 67041 77355 109443 111735 139239 142155 182405 201123 232065 328329 335205 417717 474253 547215 603369 696195 984987 1005615 1422759 1641645 1810107 2088585 2371265 2954961 3016845 4268277 4924935 5430321 6967871 7113795 8864883 9050535 12804831 14774805 20903613 21341385 26594649 27151605 34839355 38414493 44324415 62710839 64024155 79783947 90582323 104518065 115243479 132973245 188132517 192072465 271746969 313554195 345730437 398919735 452911615 564397551 576217395 815240907 940662585 1037191311 1358734845 1693192653 1728652185 2445722721 2821987755 4076204535 5079577959 5185956555 7337168163 8465963265 12228613605 15238733877 22011504489 25397889795 36685840815 66034513467 76193669385 110057522445 198103540401 330172567335 990517702005
• Sum of all divisors σ(n): 1929891962880
• Sum of proper divisors (its aliquot sum) s(n): 939374260875
• 990517702005 is a deficient number, because the sum of its proper divisors (939374260875) is less than itself. Its deficiency is 51143441130

Bases of 990517702005

• Binary: 1110011010011111011101001010110101110101₂
• Hexadecimal: 0xE69F74AD75
• Base-36: CN1CNYB9

Squares and roots of 990517702005

• 990517702005 squared (990517702005²) is 981125317985265981020025
• 990517702005 cubed (990517702005³) is 971821995349690555968657108887650125
• The square root of 990517702005 is 995247.5581507347
• The cube root of 990517702005 is 9968.2919059587

Scales and comparisons

• 990,517,702,005 seconds is equal to 31,495 years, 20 weeks, 5 days, 6 hours, 6 minutes, 45 seconds.
• To count from 1 to 990,517,702,005 would take you about sixty-two thousand, nine hundred ninety 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 990517702005 cubic inches would be around 830.7 feet tall.

Recreational maths with 990517702005

• 990517702005 backwards is 500207715099
• 990517702005 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 990517702005's digits is 45
• More coming soon!