21135989145600000

Names of 21135989145600000

• Cardinal: 21135989145600000 can be written as Twenty-one quadrillion, one hundred thirty-five trillion, nine hundred eighty-nine billion, one hundred forty-five million, six hundred thousand.

Scientific notation

• Scientific notation: 2.11359891456 × 10¹⁶

Factors of 21135989145600000

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 37
• Sum of prime factors: 96

Divisors of 21135989145600000

• Number of divisors d(n): 4200
• Complete list of divisors:
  1 2 3 4 5 6 7 8 9 10 12 14 15 16 18 20 21 24 25 27 28 30 32 35 36 40 42 45 48 50 54 56 60 63 64 70 72 75 79 80 81 84 90 96 100 105 108 112 120 125 126 128 135 140 144 150 158 160 162 168 175 180 189 192 200 210 216 224 225 237 240 243 250 252 256 270 280 288 300 315 316 320 324 336 350 360 375 378 384 395 400 405 420 432 448 450 474 480 486 500 504 512 525 540 553 560 567 576 600 625 630 632 640 648 672 675 700 711 720 729 750 756 768 790 800 810 840 864 875 896 900 945 948 960 972 1000 1008 1024 1050 1080 1106 1120 1125 1134 1152 1185 1200 1215 1250 1260 1264 1280 1296 1344 1350 1400 1422 1440 1458 1500 1512 1536 1575 1580 1600 1620 1659 1680 1701 1728 1750 1792 1800 1875 1890 1896 1920 1944 1975 2000 2016 2025 2048 2100 2133 2160 2212 2240 2250 2268 2304 2370 2400 2430 2500 2520 2528 2560 2592 2625 2688 2700 2765 2800 2835 2844 2880 2916 3000 3024 3072 3125 3150 3160 3200 3240 3318 3360 3375 3402 3456 3500 3555 3584 3600 3645 3750 3780 3792 3840 3888 3950 4000 4032 4050 4096 4200 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• Sum of all divisors σ(n): 91681614708606720
• Sum of proper divisors (its aliquot sum) s(n): 70545625563006720
• 21135989145600000 is an abundant number, because the sum of its proper divisors (70545625563006720) is greater than itself. Its abundance is 49409636417406720

Bases of 21135989145600000

• Binary: 1001011000101110001000111110101000000000000000000000000₂
• Hexadecimal: 0x4B1711F5000000
• Base-36: 5S42ZDA8000

Squares and roots of 21135989145600000

• 21135989145600000 squared (21135989145600000²) is 446730037162921017999360000000000
• 21135989145600000 cubed (21135989145600000³) is 9442081216488983255224575187746816000000000000000
• The square root of 21135989145600000 is 145382217.4325319609
• The cube root of 21135989145600000 is 276486.6665059219

Scales and comparisons

• 21,135,989,145,600,000 seconds is equal to 672,059,076 years, 48 weeks.
• To count from 1 to 21,135,989,145,600,000 would take you about two billion, sixteen million, one hundred seventy-seven thousand, two hundred thirty 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 21135989145600000 cubic inches would be around 23040.6 feet tall.

Recreational maths with 21135989145600000

• 21135989145600000 backwards is 00000654198953112
• 21135989145600000 is a Harshad number.
• The number of decimal digits it has is: 17
• The sum of 21135989145600000's digits is 54
• More coming soon!