30921377490

Names of 30921377490

• Cardinal: 30921377490 can be written as Thirty billion, nine hundred twenty-one million, three hundred seventy-seven thousand, four hundred ninety.

Scientific notation

• Scientific notation: 3.092137749 × 10¹⁰

Factors of 30921377490

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 8709

Divisors of 30921377490

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 3 5 6 9 10 15 18 30 31 45 62 90 93 155 186 279 310 465 558 930 1395 1559 2790 3118 4677 7109 7795 9354 14031 14218 15590 21327 23385 28062 35545 42654 46770 48329 63981 70155 71090 96658 106635 127962 140310 144987 213270 220379 241645 289974 319905 434961 440758 483290 639810 661137 724935 869922 1101895 1322274 1449870 1983411 2174805 2203790 3305685 3966822 4349610 6611370 9917055 11082931 19834110 22165862 33248793 55414655 66497586 99746379 110829310 166243965 199492758 332487930 343570861 498731895 687141722 997463790 1030712583 1717854305 2061425166 3092137749 3435708610 5153562915 6184275498 10307125830 15460688745 30921377490
• Sum of all divisors σ(n): 83053900800
• Sum of proper divisors (its aliquot sum) s(n): 52132523310
• 30921377490 is an abundant number, because the sum of its proper divisors (52132523310) is greater than itself. Its abundance is 21211145820

Bases of 30921377490

• Binary: 11100110011000011101100011011010010₂
• Hexadecimal: 0x7330EC6D2
• Base-36: E7DSFKI

Squares and roots of 30921377490

• 30921377490 squared (30921377490²) is 956131585879078700100
• 30921377490 cubed (30921377490³) is 29564905697079345979210600749000
• The square root of 30921377490 is 175844.7539450637
• The cube root of 30921377490 is 3138.7226703817

Scales and comparisons

• 30,921,377,490 seconds is equal to 983 years, 10 weeks, 4 days, 7 hours, 31 minutes, 30 seconds.
• To count from 1 to 30,921,377,490 would take you about one thousand, nine hundred sixty-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 30921377490 cubic inches would be around 261.6 feet tall.

Recreational maths with 30921377490

• 30921377490 backwards is 09477312903
• 30921377490 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 30921377490's digits is 45
• More coming soon!