31918931968

Names of 31918931968

• Cardinal: 31918931968 can be written as Thirty-one billion, nine hundred eighteen million, nine hundred thirty-one thousand, nine hundred sixty-eight.

Scientific notation

• Scientific notation: 3.1918931968 × 10¹⁰

Factors of 31918931968

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 17
• Sum of prime factors: 25321

Divisors of 31918931968

• Number of divisors d(n): 120
• Complete list of divisors:
  1 2 4 7 8 11 14 16 22 28 32 44 56 64 77 88 112 128 154 176 224 256 308 352 448 512 616 704 896 1024 1232 1408 1792 2048 2464 2816 3584 4096 4928 5632 7168 8192 9856 11264 14336 16384 19712 22528 25301 28672 39424 45056 50602 57344 78848 90112 101204 114688 157696 177107 180224 202408 278311 315392 354214 404816 556622 630784 708428 809632 1113244 1261568 1416856 1619264 1948177 2226488 2833712 3238528 3896354 4452976 5667424 6477056 7792708 8905952 11334848 12954112 15585416 17811904 22669696 25908224 31170832 35623808 45339392 51816448 62341664 71247616 90678784 103632896 124683328 142495232 181357568 207265792 249366656 284990464 362715136 414531584 498733312 569980928 725430272 997466624 1139961856 1450860544 1994933248 2279923712 2901721088 3989866496 4559847424 7979732992 15959465984 31918931968
• Sum of all divisors σ(n): 79590780864
• Sum of proper divisors (its aliquot sum) s(n): 47671848896
• 31918931968 is an abundant number, because the sum of its proper divisors (47671848896) is greater than itself. Its abundance is 15752916928

Bases of 31918931968

• Binary: 11101101110100001000100000000000000₂
• Hexadecimal: 0x76E844000
• Base-36: ENVPHJ4

Squares and roots of 31918931968

• 31918931968 squared (31918931968²) is 1018818217977812353024
• 31918931968 cubed (31918931968³) is 32519589387392787029643055071232
• The square root of 31918931968 is 178658.7024692613
• The cube root of 31918931968 is 3172.1188476081

Scales and comparisons

• 31,918,931,968 seconds is equal to 1,014 years, 48 weeks, 1 hour, 59 minutes, 28 seconds.
• To count from 1 to 31,918,931,968 would take you about two thousand and twenty-nine 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 31918931968 cubic inches would be around 264.3 feet tall.

Recreational maths with 31918931968

• 31918931968 backwards is 86913981913
• The number of decimal digits it has is: 11
• The sum of 31918931968's digits is 58
• More coming soon!