21539840000

Names of 21539840000

• Cardinal: 21539840000 can be written as Twenty-one billion, five hundred thirty-nine million, eight hundred forty thousand.

Scientific notation

• Scientific notation: 2.153984 × 10¹⁰

Factors of 21539840000

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 19
• Sum of prime factors: 615

Divisors of 21539840000

• Number of divisors d(n): 280
• Complete list of divisors:
  1 2 4 5 7 8 10 14 16 20 25 28 32 35 40 50 56 64 70 80 100 112 125 128 140 160 175 200 224 250 256 280 320 350 400 448 500 512 560 601 625 640 700 800 875 896 1000 1024 1120 1202 1250 1280 1400 1600 1750 1792 2000 2048 2240 2404 2500 2560 2800 3005 3200 3500 3584 4000 4096 4207 4375 4480 4808 5000 5120 5600 6010 6400 7000 7168 8000 8192 8414 8750 8960 9616 10000 10240 11200 12020 12800 14000 14336 15025 16000 16828 17500 17920 19232 20000 20480 21035 22400 24040 25600 28000 28672 30050 32000 33656 35000 35840 38464 40000 40960 42070 44800 48080 51200 56000 57344 60100 64000 67312 70000 71680 75125 76928 80000 84140 89600 96160 102400 105175 112000 120200 128000 134624 140000 143360 150250 153856 160000 168280 179200 192320 204800 210350 224000 240400 256000 269248 280000 286720 300500 307712 320000 336560 358400 375625 384640 420700 448000 480800 512000 525875 538496 560000 601000 615424 640000 673120 716800 751250 769280 841400 896000 961600 1024000 1051750 1076992 1120000 1202000 1230848 1280000 1346240 1433600 1502500 1538560 1682800 1792000 1923200 2103500 2153984 2240000 2404000 2461696 2560000 2629375 2692480 3005000 3077120 3365600 3584000 3846400 4207000 4307968 4480000 4808000 4923392 5120000 5258750 5384960 6010000 6154240 6731200 7168000 7692800 8414000 8615936 8960000 9616000 10517500 10769920 12020000 12308480 13462400 15385600 16828000 17231872 17920000 19232000 21035000 21539840 24040000 24616960 26924800 30771200 33656000 34463744 35840000 38464000 42070000 43079680 48080000 53849600 61542400 67312000 76928000 84140000 86159360 96160000 107699200 123084800 134624000 153856000 168280000 172318720 192320000 215398400 269248000 307712000 336560000 384640000 430796800 538496000 615424000 673120000 769280000 861593600 1076992000 1346240000 1538560000 2153984000 2692480000 3077120000 4307968000 5384960000 10769920000 21539840000
• Sum of all divisors σ(n): 61621312368
• Sum of proper divisors (its aliquot sum) s(n): 40081472368
• 21539840000 is an abundant number, because the sum of its proper divisors (40081472368) is greater than itself. Its abundance is 18541632368

Bases of 21539840000

• Binary: 10100000011110111111110000000000000₂
• Hexadecimal: 0x503DFE000
• Base-36: 9W89IWW

Squares and roots of 21539840000

• 21539840000 squared (21539840000²) is 463964707225600000000
• 21539840000 cubed (21539840000³) is 9993725559286267904000000000000
• The square root of 21539840000 is 146764.5733819985
• The cube root of 21539840000 is 2782.3653591559

Scales and comparisons

• 21,539,840,000 seconds is equal to 684 years, 46 weeks, 5 days, 16 hours, 53 minutes, 20 seconds.
• To count from 1 to 21,539,840,000 would take you about one thousand, three hundred sixty-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 21539840000 cubic inches would be around 231.9 feet tall.

Recreational maths with 21539840000

• 21539840000 backwards is 00004893512
• 21539840000 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21539840000's digits is 32
• More coming soon!