31145817820

Names of 31145817820

• Cardinal: 31145817820 can be written as Thirty-one billion, one hundred forty-five million, eight hundred seventeen thousand, eight hundred twenty.

Scientific notation

• Scientific notation: 3.114581782 × 10¹⁰

Factors of 31145817820

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 237

Divisors of 31145817820

• Number of divisors d(n): 216
• Complete list of divisors:
  1 2 4 5 10 13 20 26 37 52 53 65 74 106 127 130 148 169 185 212 254 260 265 338 370 481 508 530 635 676 689 740 845 962 1060 1270 1369 1378 1651 1690 1924 1961 2405 2540 2738 2756 3302 3380 3445 3922 4699 4810 5476 6253 6604 6731 6845 6890 7844 8255 8957 9398 9620 9805 12506 13462 13690 13780 16510 17797 17914 18796 19610 21463 23495 25012 25493 26924 27380 31265 33020 33655 35594 35828 39220 42926 44785 46990 50986 61087 62530 67310 71188 72557 85852 87503 88985 89570 93980 101972 107315 122174 125060 127465 134620 145114 173863 175006 177970 179140 214630 231361 244348 249047 254930 290228 305435 331409 347726 350012 355940 362785 429260 437515 462722 498094 509860 610870 662818 695452 725570 794131 869315 875030 925444 943241 996188 1137539 1156805 1221740 1245235 1325636 1451140 1588262 1657045 1738630 1750060 1886482 2260219 2275078 2313610 2490470 3176524 3237611 3314090 3477260 3772964 3970655 4520438 4550156 4627220 4716205 4980940 5687695 6475222 6628180 7941310 9040876 9214739 9432410 11301095 11375390 12262133 12950444 15882620 16188055 18429478 18864820 22602190 22750780 24524266 29382847 32376110 36858956 42088943 45204380 46073695 49048532 58765694 61310665 64752220 84177886 92147390 117531388 119791607 122621330 146914235 168355772 184294780 210444715 239583214 245242660 293828470 420889430 479166428 587656940 598958035 841778860 1197916070 1557290891 2395832140 3114581782 6229163564 7786454455 15572908910 31145817820
• Sum of all divisors σ(n): 74747764224
• Sum of proper divisors (its aliquot sum) s(n): 43601946404
• 31145817820 is an abundant number, because the sum of its proper divisors (43601946404) is greater than itself. Its abundance is 12456128584

Bases of 31145817820

• Binary: 11101000000011011110111011011011100₂
• Hexadecimal: 0x7406F76DC
• Base-36: EB3EYU4

Squares and roots of 31145817820

• 31145817820 squared (31145817820²) is 970061967676629552400
• 31145817820 cubed (31145817820³) is 30213373319367032710678543768000
• The square root of 31145817820 is 176481.7775862425
• The cube root of 31145817820 is 3146.2984258037

Scales and comparisons

• 31,145,817,820 seconds is equal to 990 years, 17 weeks, 5 days, 3 minutes, 40 seconds.
• To count from 1 to 31,145,817,820 would take you about one thousand, nine hundred eighty 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 31145817820 cubic inches would be around 262.2 feet tall.

Recreational maths with 31145817820

• 31145817820 backwards is 02871854113
• The number of decimal digits it has is: 11
• The sum of 31145817820's digits is 40
• More coming soon!