31890216800

Names of 31890216800

• Cardinal: 31890216800 can be written as Thirty-one billion, eight hundred ninety million, two hundred sixteen thousand, eight hundred.

Scientific notation

• Scientific notation: 3.18902168 × 10¹⁰

Factors of 31890216800

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 19708

Divisors of 31890216800

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 4 5 8 10 13 16 20 25 26 32 40 50 52 65 80 100 104 130 157 160 200 208 260 314 325 400 416 520 628 650 785 800 1040 1256 1300 1570 2041 2080 2512 2600 3140 3925 4082 5024 5200 6280 7850 8164 10205 10400 12560 15700 16328 19531 20410 25120 31400 32656 39062 40820 51025 62800 65312 78124 81640 97655 102050 125600 156248 163280 195310 204100 253903 312496 326560 390620 408200 488275 507806 624992 781240 816400 976550 1015612 1269515 1562480 1632800 1953100 2031224 2539030 3066367 3124960 3906200 4062448 5078060 6132734 6347575 7812400 8124896 10156120 12265468 12695150 15331835 15624800 20312240 24530936 25390300 30663670 39862771 40624480 49061872 50780600 61327340 76659175 79725542 98123744 101561200 122654680 153318350 159451084 199313855 203122400 245309360 306636700 318902168 398627710 490618720 613273400 637804336 797255420 996569275 1226546800 1275608672 1594510840 1993138550 2453093600 3189021680 3986277100 6378043360 7972554200 15945108400 31890216800
• Sum of all divisors σ(n): 84378943152
• Sum of proper divisors (its aliquot sum) s(n): 52488726352
• 31890216800 is an abundant number, because the sum of its proper divisors (52488726352) is greater than itself. Its abundance is 20598509552

Bases of 31890216800

• Binary: 11101101100110011100001011101100000₂
• Hexadecimal: 0x76CCE1760
• Base-36: ENEM0RK

Squares and roots of 31890216800

• 31890216800 squared (31890216800²) is 1016985927551002240000
• 31890216800 cubed (31890216800³) is 32431901712150554490885632000000
• The square root of 31890216800 is 178578.3211926913
• The cube root of 31890216800 is 3171.1673197977

Scales and comparisons

• 31,890,216,800 seconds is equal to 1,014 years, 3 days, 17 hours, 33 minutes, 20 seconds.
• To count from 1 to 31,890,216,800 would take you about two thousand and twenty-eight 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 31890216800 cubic inches would be around 264.3 feet tall.

Recreational maths with 31890216800

• 31890216800 backwards is 00861209813
• The number of decimal digits it has is: 11
• The sum of 31890216800's digits is 38
• More coming soon!