990505108587645

Names of 990505108587645

• Cardinal: 990505108587645 can be written as Nine hundred ninety trillion, five hundred five billion, one hundred eight million, five hundred eighty-seven thousand, six hundred forty-five.

Scientific notation

• Scientific notation: 9.90505108587645 × 10¹⁴

Factors of 990505108587645

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 12370154

Divisors of 990505108587645

• Number of divisors d(n): 128
• Complete list of divisors:
  1 3 5 7 9 15 21 27 35 45 63 101 105 135 189 303 315 505 707 839 909 945 1515 2121 2517 2727 3535 4195 4545 5873 6363 7551 10605 12585 13635 17619 19089 22653 29365 31815 37755 52857 84739 88095 95445 113265 158571 254217 264285 423695 593173 762651 792855 1271085 1779519 2287953 2965865 3813255 5338557 8897595 11439765 12369199 16015671 26692785 37107597 61845995 80078355 86584393 111322791 185537985 259753179 333968373 432921965 556613955 779259537 1249289099 1298765895 1669841865 2337778611 3747867297 3896297685 6246445495 8745023693 10377757961 11243601891 11688893055 18739336485 26235071079 31133273883 33730805673 43725118465 51888789805 56218009455 72644305727 78705213237 93399821649 131175355395 155666369415 168654028365 217932917181 236115639711 280199464947 363221528635 393526066185 466999108245 653798751543 1048153554061 1089664585905 1180578198555 1400997324735 1961396254629 3144460662183 3268993757715 5240767770305 7337074878427 9433381986549 9806981273145 15722303310915 22011224635281 28300145959647 36685374392135 47166909932745 66033673905843 110056123176405 141500729798235 198101021717529 330168369529215 990505108587645
• Sum of all divisors σ(n): 2034802667520000
• Sum of proper divisors (its aliquot sum) s(n): 1044297558932355
• 990505108587645 is an abundant number, because the sum of its proper divisors (1044297558932355) is greater than itself. Its abundance is 53792450344710

Bases of 990505108587645

• Binary: 11100001001101101111110001001001010100010001111101₂
• Hexadecimal: 0x384DBF125447D
• Base-36: 9R3RRJKHH9

Squares and roots of 990505108587645

• 990505108587645 squared (990505108587645²) is 981100370138222412726646646025
• 990505108587645 cubed (990505108587645³) is 971784928659138692855703420325580664003361125
• The square root of 990505108587645 is 31472291.1239020697
• The cube root of 990505108587645 is 99682.4966024137

Scales and comparisons

• 990,505,108,587,645 seconds is equal to 31,494,998 years, 32 weeks, 1 day, 13 hours, 45 seconds.
• To count from 1 to 990,505,108,587,645 would take you about seventy-eight million, seven hundred thirty-seven thousand, four hundred ninety-six 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 990505108587645 cubic inches would be around 8306.9 feet tall.

Recreational maths with 990505108587645

• 990505108587645 backwards is 546785801505099
• The number of decimal digits it has is: 15
• The sum of 990505108587645's digits is 72
• More coming soon!