31981147968

Names of 31981147968

• Cardinal: 31981147968 can be written as Thirty-one billion, nine hundred eighty-one million, one hundred forty-seven thousand, nine hundred sixty-eight.

Scientific notation

• Scientific notation: 3.1981147968 × 10¹⁰

Factors of 31981147968

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 196680

Divisors of 31981147968

• Number of divisors d(n): 168
• Complete list of divisors:
  1 2 3 4 6 7 8 11 12 14 16 21 22 24 28 32 33 42 44 48 56 64 66 77 84 88 96 112 121 132 154 168 176 192 224 231 242 264 308 336 352 363 448 462 484 528 616 672 704 726 847 924 968 1056 1232 1344 1452 1694 1848 1936 2112 2464 2541 2904 3388 3696 3872 4928 5082 5808 6776 7392 7744 10164 11616 13552 14784 20328 23232 27104 40656 54208 81312 162624 196657 393314 589971 786628 1179942 1376599 1573256 2163227 2359884 2753198 3146512 4129797 4326454 4719768 5506396 6293024 6489681 8259594 8652908 9439536 11012792 12586048 12979362 15142589 16519188 17305816 18879072 22025584 23795497 25958724 30285178 33038376 34611632 37758144 44051168 45427767 47590994 51917448 60570356 66076752 69223264 71386491 88102336 90855534 95181988 103834896 121140712 132153504 138446528 142772982 166568479 181711068 190363976 207669792 242281424 264307008 285545964 333136958 363422136 380727952 415339584 484562848 499705437 571091928 666273916 726844272 761455904 969125696 999410874 1142183856 1332547832 1453688544 1522911808 1998821748 2284367712 2665095664 2907377088 3997643496 4568735424 5330191328 7995286992 10660382656 15990573984 31981147968
• Sum of all divisors σ(n): 106296008896
• Sum of proper divisors (its aliquot sum) s(n): 74314860928
• 31981147968 is an abundant number, because the sum of its proper divisors (74314860928) is greater than itself. Its abundance is 42333712960

Bases of 31981147968

• Binary: 11101110010001110011001011101000000₂
• Hexadecimal: 0x772399740
• Base-36: EOWQZPC

Squares and roots of 31981147968

• 31981147968 squared (31981147968²) is 1022793825351110529024
• 31981147968 cubed (31981147968³) is 32710120669310615381839302623232
• The square root of 31981147968 is 178832.7374056551
• The cube root of 31981147968 is 3174.1785286441

Scales and comparisons

• 31,981,147,968 seconds is equal to 1,016 years, 46 weeks, 6 days, 4 hours, 12 minutes, 48 seconds.
• To count from 1 to 31,981,147,968 would take you about two thousand and thirty-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 31981147968 cubic inches would be around 264.5 feet tall.

Recreational maths with 31981147968

• 31981147968 backwards is 86974118913
• The number of decimal digits it has is: 11
• The sum of 31981147968's digits is 57
• More coming soon!