668838597440

Names of 668838597440

• Cardinal: 668838597440 can be written as Six hundred sixty-eight billion, eight hundred thirty-eight million, five hundred ninety-seven thousand, four hundred forty.

Scientific notation

• Scientific notation: 6.6883859744 × 10¹¹

Factors of 668838597440

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 6127

Divisors of 668838597440

• Number of divisors d(n): 224
• Complete list of divisors:
  1 2 4 5 8 10 13 16 20 26 32 40 52 64 65 79 80 104 130 158 160 208 260 316 320 359 395 416 520 632 718 790 832 1027 1040 1264 1436 1580 1795 2054 2080 2528 2872 3160 3590 4108 4160 4667 5056 5135 5669 5744 6320 7180 8216 9334 10270 11338 11488 12640 14360 16432 18668 20540 22676 22976 23335 25280 28345 28361 28720 32864 37336 41080 45352 46670 56690 56722 57440 65728 73697 74672 82160 90704 93340 113380 113444 114880 141805 147394 149344 164320 181408 186680 226760 226888 283610 294788 298688 328640 362816 368485 368693 373360 447851 453520 453776 567220 589576 736970 737386 746720 895702 907040 907552 1134440 1179152 1473940 1474772 1493440 1791404 1814080 1815104 1843465 2035171 2239255 2268880 2358304 2947880 2949544 3582808 3686930 4070342 4478510 4537760 4716608 5822063 5895760 5899088 7165616 7373860 8140684 8957020 9075520 10175855 11644126 11791520 11798176 14331232 14747720 16281368 17914040 20351710 23288252 23583040 23596352 26457223 28662464 29110315 29495440 32562736 35828080 40703420 46576504 52914446 58220630 58990880 65125472 71656160 81406840 93153008 105828892 116441260 117981760 130250944 132286115 143312320 160778509 162813680 186306016 211657784 232882520 264572230 321557018 325627360 372612032 423315568 465765040 529144460 643114036 651254720 803892545 846631136 931530080 1058288920 1286228072 1607785090 1693262272 1863060160 2090120617 2116577840 2572456144 3215570180 4180241234 4233155680 5144912288 6431140360 8360482468 8466311360 10289824576 10450603085 12862280720 16720964936 20901206170 25724561440 33441929872 41802412340 51449122880 66883859744 83604824680 133767719488 167209649360 334419298720 668838597440
• Sum of all divisors σ(n): 1742041728000
• Sum of proper divisors (its aliquot sum) s(n): 1073203130560
• 668838597440 is an abundant number, because the sum of its proper divisors (1073203130560) is greater than itself. Its abundance is 404364533120

Bases of 668838597440

• Binary: 1001101110111001111000110001001101000000₂
• Hexadecimal: 0x9BB9E31340
• Base-36: 8J9D8COW

Squares and roots of 668838597440

• 668838597440 squared (668838597440²) is 447345069425506374553600
• 668838597440 cubed (668838597440³) is 299201648806255110118209130102784000
• The square root of 668838597440 is 817825.5299512237
• The cube root of 668838597440 is 8745.2811451245

Scales and comparisons

• 668,838,597,440 seconds is equal to 21,266 years, 51 weeks, 6 days, 11 hours, 17 minutes, 20 seconds.
• To count from 1 to 668,838,597,440 would take you about forty-two thousand, five hundred 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 668838597440 cubic inches would be around 728.8 feet tall.

Recreational maths with 668838597440

• 668838597440 backwards is 044795838866
• The number of decimal digits it has is: 12
• The sum of 668838597440's digits is 68
• More coming soon!