121539605720

Names of 121539605720

• Cardinal: 121539605720 can be written as One hundred twenty-one billion, five hundred thirty-nine million, six hundred five thousand, seven hundred twenty.

Scientific notation

• Scientific notation: 1.2153960572 × 10¹¹

Factors of 121539605720

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 420200

Divisors of 121539605720

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 4 5 8 10 13 20 26 40 52 65 104 130 260 520 557 1114 2228 2785 4456 5570 7241 11140 14482 22280 28964 36205 57928 72410 144820 289640 419623 839246 1678492 2098115 3356984 4196230 5455099 8392460 10910198 16784920 21820396 27275495 43640792 54550990 109101980 218203960 233730011 467460022 934920044 1168650055 1869840088 2337300110 3038490143 4674600220 6076980286 9349200440 12153960572 15192450715 24307921144 30384901430 60769802860 121539605720
• Sum of all divisors σ(n): 295029241920
• Sum of proper divisors (its aliquot sum) s(n): 173489636200
• 121539605720 is an abundant number, because the sum of its proper divisors (173489636200) is greater than itself. Its abundance is 51950030480

Bases of 121539605720

• Binary: 1110001001100010100110011010011011000₂
• Hexadecimal: 0x1C4C5334D8
• Base-36: 1JU1JJYW

Squares and roots of 121539605720

• 121539605720 squared (121539605720²) is 14771875758573056718400
• 121539605720 cubed (121539605720³) is 1795367955441795223369533069248000
• The square root of 121539605720 is 348625.3084903617
• The cube root of 121539605720 is 4953.4289844487

Scales and comparisons

• 121,539,605,720 seconds is equal to 3,864 years, 30 weeks, 2 days, 9 hours, 35 minutes, 20 seconds.
• To count from 1 to 121,539,605,720 would take you about seven thousand, seven 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 121539605720 cubic inches would be around 412.8 feet tall.

Recreational maths with 121539605720

• 121539605720 backwards is 027506935121
• The number of decimal digits it has is: 12
• The sum of 121539605720's digits is 41
• More coming soon!