9990129428864

Names of 9990129428864

• Cardinal: 9990129428864 can be written as Nine trillion, nine hundred ninety billion, one hundred twenty-nine million, four hundred twenty-eight thousand, eight hundred sixty-four.

Scientific notation

• Scientific notation: 9.990129428864 × 10¹²

Factors of 9990129428864

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 10368

Divisors of 9990129428864

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 4 8 13 16 26 32 52 64 104 128 208 416 421 832 842 1664 1684 1741 3368 3482 5473 6736 6964 8191 10946 13472 13928 16382 21892 22633 26944 27856 32764 43784 45266 53888 55712 65528 87568 90532 106483 111424 131056 175136 181064 212966 222848 262112 350272 362128 425932 524224 700544 724256 732961 851864 1048448 1448512 1465922 1703728 2897024 2931844 3407456 3448411 5863688 6814912 6896822 9528493 11727376 13629824 13793644 14260531 19056986 23454752 27587288 28521062 38113972 44829343 46909504 55174576 57042124 76227944 89658686 93819008 110349152 114084248 152455888 179317372 185386903 220698304 228168496 304911776 358634744 370773806 441396608 456336992 609823552 717269488 741547612 912673984 1219647104 1434538976 1483095224 1825347968 2869077952 2966190448 5738155904 5932380896 6003683551 11864761792 12007367102 23729523584 24014734204 48029468408 78047886163 96058936816 156095772326 192117873632 312191544652 384235747264 624383089304 768471494528 1248766178608 2497532357216 4995064714432 9990129428864
• Sum of all divisors σ(n): 21499024834560
• Sum of proper divisors (its aliquot sum) s(n): 11508895405696
• 9990129428864 is an abundant number, because the sum of its proper divisors (11508895405696) is greater than itself. Its abundance is 1518765976832

Bases of 9990129428864

• Binary: 10010001011000000010000111011010100110000000₂
• Hexadecimal: 0x916021DA980
• Base-36: 3JHEH4HA8

Squares and roots of 9990129428864

• 9990129428864 squared (9990129428864²) is 99802686005454550836330496
• 9990129428864 cubed (9990129428864³) is 997041750542764797535260031546025836544
• The square root of 9990129428864 is 3160716.6005296963
• The cube root of 9990129428864 is 21537.2560664989

Scales and comparisons

• 9,990,129,428,864 seconds is equal to 317,655 years, 11 weeks, 1 day, 27 minutes, 44 seconds.
• To count from 1 to 9,990,129,428,864 would take you about seven hundred ninety-four thousand, one hundred thirty-eight 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 9990129428864 cubic inches would be around 1794.8 feet tall.

Recreational maths with 9990129428864

• 9990129428864 backwards is 4688249210999
• The number of decimal digits it has is: 13
• The sum of 9990129428864's digits is 71
• More coming soon!