20688000000

Names of 20688000000

• Cardinal: 20688000000 can be written as Twenty billion, six hundred eighty-eight million.

Scientific notation

• Scientific notation: 2.0688 × 10¹⁰

Factors of 20688000000

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 18
• Sum of prime factors: 441

Divisors of 20688000000

• Number of divisors d(n): 308
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 15 16 20 24 25 30 32 40 48 50 60 64 75 80 96 100 120 125 128 150 160 192 200 240 250 256 300 320 375 384 400 431 480 500 512 600 625 640 750 768 800 862 960 1000 1024 1200 1250 1280 1293 1500 1536 1600 1724 1875 1920 2000 2155 2400 2500 2560 2586 3000 3072 3125 3200 3448 3750 3840 4000 4310 4800 5000 5120 5172 6000 6250 6400 6465 6896 7500 7680 8000 8620 9375 9600 10000 10344 10775 12000 12500 12800 12930 13792 15000 15360 15625 16000 17240 18750 19200 20000 20688 21550 24000 25000 25600 25860 27584 30000 31250 32000 32325 34480 37500 38400 40000 41376 43100 46875 48000 50000 51720 53875 55168 60000 62500 64000 64650 68960 75000 76800 80000 82752 86200 93750 96000 100000 103440 107750 110336 120000 125000 128000 129300 137920 150000 160000 161625 165504 172400 187500 192000 200000 206880 215500 220672 240000 250000 258600 269375 275840 300000 320000 323250 331008 344800 375000 384000 400000 413760 431000 441344 480000 500000 517200 538750 551680 600000 640000 646500 662016 689600 750000 800000 808125 827520 862000 960000 1000000 1034400 1077500 1103360 1200000 1293000 1324032 1346875 1379200 1500000 1600000 1616250 1655040 1724000 1920000 2000000 2068800 2155000 2206720 2400000 2586000 2693750 2758400 3000000 3200000 3232500 3310080 3448000 4000000 4040625 4137600 4310000 4800000 5172000 5387500 5516800 6000000 6465000 6620160 6734375 6896000 8000000 8081250 8275200 8620000 9600000 10344000 10775000 11033600 12000000 12930000 13468750 13792000 16000000 16162500 16550400 17240000 20203125 20688000 21550000 24000000 25860000 26937500 27584000 32325000 33100800 34480000 40406250 41376000 43100000 48000000 51720000 53875000 55168000 64650000 68960000 80812500 82752000 86200000 103440000 107750000 129300000 137920000 161625000 165504000 172400000 206880000 215500000 258600000 275840000 323250000 344800000 413760000 431000000 517200000 646500000 689600000 827520000 862000000 1034400000 1293000000 1379200000 1724000000 2068800000 2586000000 3448000000 4137600000 5172000000 6896000000 10344000000 20688000000
• Sum of all divisors σ(n): 69085365696
• Sum of proper divisors (its aliquot sum) s(n): 48397365696
• 20688000000 is an abundant number, because the sum of its proper divisors (48397365696) is greater than itself. Its abundance is 27709365696

Bases of 20688000000

• Binary: 10011010001000110011101010000000000₂
• Hexadecimal: 0x4D119D400
• Base-36: 9I53MYO

Squares and roots of 20688000000

• 20688000000 squared (20688000000²) is 427993344000000000000
• 20688000000 cubed (20688000000³) is 8854326300672000000000000000000
• The square root of 20688000000 is 143833.2367709217
• The cube root of 20688000000 is 2745.1927031515

Scales and comparisons

• 20,688,000,000 seconds is equal to 657 years, 42 weeks, 2 days, 10 hours, 40 minutes.
• To count from 1 to 20,688,000,000 would take you about one thousand, three hundred fifteen 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 20688000000 cubic inches would be around 228.8 feet tall.

Recreational maths with 20688000000

• 20688000000 backwards is 00000088602
• 20688000000 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 20688000000's digits is 24
• More coming soon!