1681440768

Names of 1681440768

• Cardinal: 1681440768 can be written as One billion, six hundred eighty-one million, four hundred forty thousand, seven hundred sixty-eight.

Scientific notation

• Scientific notation: 1.681440768 × 10⁹

Factors of 1681440768

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 20
• Sum of prime factors: 193

Divisors of 1681440768

• Number of divisors d(n): 300
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 14 16 18 21 24 27 28 32 36 42 48 54 56 63 64 72 81 84 96 108 112 126 128 144 162 168 181 189 192 216 224 252 256 288 324 336 362 378 384 432 448 504 512 543 567 576 648 672 724 756 768 864 896 1008 1024 1086 1134 1152 1267 1296 1344 1448 1512 1536 1629 1728 1792 2016 2048 2172 2268 2304 2534 2592 2688 2896 3024 3072 3258 3456 3584 3801 4032 4096 4344 4536 4608 4887 5068 5184 5376 5792 6048 6144 6516 6912 7168 7602 8064 8192 8688 9072 9216 9774 10136 10368 10752 11403 11584 12096 12288 13032 13824 14336 14661 15204 16128 16384 17376 18144 18432 19548 20272 20736 21504 22806 23168 24192 24576 26064 27648 28672 29322 30408 32256 34209 34752 36288 36864 39096 40544 41472 43008 45612 46336 48384 49152 52128 55296 57344 58644 60816 64512 68418 69504 72576 73728 78192 81088 82944 86016 91224 92672 96768 102627 104256 110592 114688 117288 121632 129024 136836 139008 145152 147456 156384 162176 165888 172032 182448 185344 193536 205254 208512 221184 234576 243264 258048 273672 278016 290304 312768 324352 331776 344064 364896 370688 387072 410508 417024 442368 469152 486528 516096 547344 556032 580608 625536 648704 663552 729792 741376 774144 821016 834048 938304 973056 1032192 1094688 1112064 1161216 1251072 1297408 1327104 1459584 1482752 1548288 1642032 1668096 1876608 1946112 2189376 2224128 2322432 2502144 2594816 2919168 2965504 3096576 3284064 3336192 3753216 3892224 4378752 4448256 4644864 5004288 5189632 5838336 6568128 6672384 7506432 7784448 8757504 8896512 9289728 10008576 10379264 11676672 13136256 13344768 15012864 15568896 17515008 20017152 20758528 23353344 26272512 26689536 30025728 31137792 35030016 40034304 46706688 52545024 60051456 62275584 70060032 80068608 93413376 105090048 120102912 140120064 186826752 210180096 240205824 280240128 420360192 560480256 840720384 1681440768
• Sum of all divisors σ(n): 5772758992
• Sum of proper divisors (its aliquot sum) s(n): 4091318224
• 1681440768 is an abundant number, because the sum of its proper divisors (4091318224) is greater than itself. Its abundance is 2409877456

Bases of 1681440768

• Binary: 1100100001110001100000000000000₂
• Hexadecimal: 0x6438C000
• Base-36: RT3400

Squares and roots of 1681440768

• 1681440768 squared (1681440768²) is 2827243056292429824
• 1681440768 cubed (1681440768³) is 4753841735895010435852664832
• The square root of 1681440768 is 41005.3748672049
• The cube root of 1681440768 is 1189.1241272829

Scales and comparisons

• 1,681,440,768 seconds is equal to 53 years, 24 weeks, 1 day, 2 hours, 52 minutes, 48 seconds.
• To count from 1 to 1,681,440,768 would take you about one hundred six 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 1681440768 cubic inches would be around 99.1 feet tall.

Recreational maths with 1681440768

• 1681440768 backwards is 8670441861
• The number of decimal digits it has is: 10
• The sum of 1681440768's digits is 45
• More coming soon!