12900487440

Names of 12900487440

• Cardinal: 12900487440 can be written as Twelve billion, nine hundred million, four hundred eighty-seven thousand, four hundred forty.

Scientific notation

• Scientific notation: 1.290048744 × 10¹⁰

Factors of 12900487440

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 15370

Divisors of 12900487440

• Number of divisors d(n): 80
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 15 16 20 24 30 40 48 60 80 120 240 5393 9967 10786 16179 19934 21572 26965 29901 32358 39868 43144 49835 53930 59802 64716 79736 80895 86288 99670 107860 119604 129432 149505 159472 161790 199340 215720 239208 258864 299010 323580 398680 431440 478416 598020 647160 797360 1196040 1294320 2392080 53752031 107504062 161256093 215008124 268760155 322512186 430016248 537520310 645024372 806280465 860032496 1075040620 1290048744 1612560930 2150081240 2580097488 3225121860 4300162480 6450243720 12900487440
• Sum of all divisors σ(n): 40002939648
• Sum of proper divisors (its aliquot sum) s(n): 27102452208
• 12900487440 is an abundant number, because the sum of its proper divisors (27102452208) is greater than itself. Its abundance is 14201964768

Bases of 12900487440

• Binary: 1100000000111011011101000100010000₂
• Hexadecimal: 0x300EDD110
• Base-36: 5XCM7TC

Squares and roots of 12900487440

• 12900487440 squared (12900487440²) is 166422576189597753600
• 12900487440 cubed (12900487440³) is 2146932353866348878969014784000
• The square root of 12900487440 is 113580.3127306841
• The cube root of 12900487440 is 2345.3196382517

Scales and comparisons

• 12,900,487,440 seconds is equal to 410 years, 10 weeks, 1 day, 4 hours, 44 minutes.
• To count from 1 to 12,900,487,440 would take you about eight hundred 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 12900487440 cubic inches would be around 195.4 feet tall.

Recreational maths with 12900487440

• 12900487440 backwards is 04478400921
• The number of decimal digits it has is: 11
• The sum of 12900487440's digits is 39
• More coming soon!