30721912832

Names of 30721912832

• Cardinal: 30721912832 can be written as Thirty billion, seven hundred twenty-one million, nine hundred twelve thousand, eight hundred thirty-two.

Scientific notation

• Scientific notation: 3.0721912832 × 10¹⁰

Factors of 30721912832

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 2415

Divisors of 30721912832

• Number of divisors d(n): 104
• Complete list of divisors:
  1 2 4 8 13 16 26 32 52 64 104 128 208 256 271 416 512 542 832 1024 1084 1664 2048 2129 2168 3328 3523 4096 4258 4336 6656 7046 8516 8672 13312 14092 17032 17344 26624 27677 28184 34064 34688 53248 55354 56368 68128 69376 110708 112736 136256 138752 221416 225472 272512 277504 442832 450944 545024 555008 576959 885664 901888 1090048 1110016 1153918 1771328 1803776 2180096 2307836 3542656 3607552 4360192 4615672 7085312 7215104 7500467 8720384 9231344 14170624 14430208 15000934 18462688 28341248 30001868 36925376 56682496 60003736 73850752 113364992 120007472 147701504 240014944 295403008 480029888 590806016 960059776 1181612032 1920119552 2363224064 3840239104 7680478208 15360956416 30721912832
• Sum of all divisors σ(n): 66437528640
• Sum of proper divisors (its aliquot sum) s(n): 35715615808
• 30721912832 is an abundant number, because the sum of its proper divisors (35715615808) is greater than itself. Its abundance is 4993702976

Bases of 30721912832

• Binary: 11100100111001010110011000000000000₂
• Hexadecimal: 0x7272B3000
• Base-36: E4317NK

Squares and roots of 30721912832

• 30721912832 squared (30721912832²) is 943835928057006260224
• 30721912832 cubed (30721912832³) is 28996445109477169453480036794368
• The square root of 30721912832 is 175276.6750939781
• The cube root of 30721912832 is 3131.9591157881

Scales and comparisons

• 30,721,912,832 seconds is equal to 976 years, 44 weeks, 5 days, 16 hours, 40 minutes, 32 seconds.
• To count from 1 to 30,721,912,832 would take you about one thousand, nine hundred fifty-three 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 30721912832 cubic inches would be around 261 feet tall.

Recreational maths with 30721912832

• 30721912832 backwards is 23821912703
• The number of decimal digits it has is: 11
• The sum of 30721912832's digits is 38
• More coming soon!