31808212128

Names of 31808212128

• Cardinal: 31808212128 can be written as Thirty-one billion, eight hundred eight million, two hundred twelve thousand, one hundred twenty-eight.

Scientific notation

• Scientific notation: 3.1808212128 × 10¹⁰

Factors of 31808212128

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 1434376

Divisors of 31808212128

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 3 4 6 7 8 9 11 12 14 16 18 21 22 24 28 32 33 36 42 44 48 56 63 66 72 77 84 88 96 99 112 126 132 144 154 168 176 198 224 231 252 264 288 308 336 352 396 462 504 528 616 672 693 792 924 1008 1056 1232 1386 1584 1848 2016 2464 2772 3168 3696 5544 7392 11088 22176 1434353 2868706 4303059 5737412 8606118 10040471 11474824 12909177 15777883 17212236 20080942 22949648 25818354 30121413 31555766 34424472 40161884 45899296 47333649 51636708 60242826 63111532 68848944 80323768 90364239 94667298 103273416 110445181 120485652 126223064 137697888 142000947 160647536 180728478 189334596 206546832 220890362 240971304 252446128 284001894 321295072 331335543 361456956 378669192 413093664 441780724 481942608 504892256 568003788 662671086 722913912 757338384 883561448 963885216 994006629 1136007576 1325342172 1445827824 1514676768 1767122896 1988013258 2272015152 2650684344 2891655648 3534245792 3976026516 4544030304 5301368688 7952053032 10602737376 15904106064 31808212128
• Sum of all divisors σ(n): 112774648896
• Sum of proper divisors (its aliquot sum) s(n): 80966436768
• 31808212128 is an abundant number, because the sum of its proper divisors (80966436768) is greater than itself. Its abundance is 49158224640

Bases of 31808212128

• Binary: 11101100111111010101100110010100000₂
• Hexadecimal: 0x767EACCA0
• Base-36: EM1SDK0

Squares and roots of 31808212128

• 31808212128 squared (31808212128²) is 1011762358779846288384
• 31808212128 cubed (31808212128³) is 32182351731194993992151734321152
• The square root of 31808212128 is 178348.5691784491
• The cube root of 31808212128 is 3168.4468014601

Scales and comparisons

• 31,808,212,128 seconds is equal to 1,011 years, 20 weeks, 6 days, 14 hours, 28 minutes, 48 seconds.
• To count from 1 to 31,808,212,128 would take you about two thousand and twenty-two 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 31808212128 cubic inches would be around 264 feet tall.

Recreational maths with 31808212128

• 31808212128 backwards is 82121280813
• 31808212128 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 31808212128's digits is 36
• More coming soon!