21136483840

Names of 21136483840

• Cardinal: 21136483840 can be written as Twenty-one billion, one hundred thirty-six million, four hundred eighty-three thousand, eight hundred forty.

Scientific notation

• Scientific notation: 2.113648384 × 10¹⁰

Factors of 21136483840

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 207

Divisors of 21136483840

• Number of divisors d(n): 160
• Complete list of divisors:
  1 2 4 5 8 10 16 20 32 37 40 64 74 80 128 148 160 163 185 256 296 320 326 370 512 592 640 652 740 815 1184 1280 1304 1369 1480 1630 2368 2560 2608 2738 2960 3260 4736 5216 5476 5920 6031 6520 6845 9472 10432 10952 11840 12062 13040 13690 18944 20864 21904 23680 24124 26080 27380 30155 41728 43808 47360 48248 50653 52160 54760 60310 83456 87616 94720 96496 101306 104320 109520 120620 175232 192992 202612 208640 219040 223147 241240 253265 350464 385984 405224 417280 438080 446294 482480 506530 700928 771968 810448 876160 892588 964960 1013060 1115735 1543936 1620896 1752320 1785176 1929920 2026120 2231470 3087872 3241792 3504640 3570352 3859840 4052240 4462940 6483584 7140704 7719680 8104480 8256439 8925880 12967168 14281408 15439360 16208960 16512878 17851760 25934336 28562816 32417920 33025756 35703520 41282195 57125632 64835840 66051512 71407040 82564390 114251264 129671680 132103024 142814080 165128780 264206048 285628160 330257560 528412096 571256320 660515120 1056824192 1321030240 2113648384 2642060480 4227296768 5284120960 10568241920 21136483840
• Sum of all divisors σ(n): 52405261920
• Sum of proper divisors (its aliquot sum) s(n): 31268778080
• 21136483840 is an abundant number, because the sum of its proper divisors (31268778080) is greater than itself. Its abundance is 10132294240

Bases of 21136483840

• Binary: 10011101011110101010010011000000000₂
• Hexadecimal: 0x4EBD52600
• Base-36: 9PK47B4

Squares and roots of 21136483840

• 21136483840 squared (21136483840²) is 446750949118581145600
• 21136483840 cubed (21136483840³) is 9442744216549552627703087104000
• The square root of 21136483840 is 145383.9187805859
• The cube root of 21136483840 is 2764.8882357455

Scales and comparisons

• 21,136,483,840 seconds is equal to 672 years, 3 weeks, 6 days, 5 hours, 30 minutes, 40 seconds.
• To count from 1 to 21,136,483,840 would take you about one thousand, three hundred forty-four 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 21136483840 cubic inches would be around 230.4 feet tall.

Recreational maths with 21136483840

• 21136483840 backwards is 04838463112
• 21136483840 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21136483840's digits is 40
• More coming soon!