21072943800

Names of 21072943800

• Cardinal: 21072943800 can be written as Twenty-one billion, seventy-two million, nine hundred forty-three thousand, eight hundred.

Scientific notation

• Scientific notation: 2.10729438 × 10¹⁰

Factors of 21072943800

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 12274

Divisors of 21072943800

• Number of divisors d(n): 240
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 18 20 24 25 27 30 36 40 45 50 54 60 72 75 81 90 100 107 108 120 135 150 162 180 200 214 216 225 270 300 321 324 360 405 428 450 535 540 600 642 648 675 810 856 900 963 1070 1080 1284 1350 1605 1620 1800 1926 2025 2140 2568 2675 2700 2889 3210 3240 3852 4050 4280 4815 5350 5400 5778 6420 7704 8025 8100 8667 9630 10700 11556 12157 12840 14445 16050 16200 17334 19260 21400 23112 24075 24314 28890 32100 34668 36471 38520 43335 48150 48628 57780 60785 64200 69336 72225 72942 86670 96300 97256 109413 115560 121570 144450 145884 173340 182355 192600 216675 218826 243140 288900 291768 303925 328239 346680 364710 433350 437652 486280 547065 577800 607850 656478 729420 866700 875304 911775 984717 1094130 1215700 1300799 1312956 1458840 1641195 1733400 1823550 1969434 2188260 2431400 2601598 2625912 2735325 3282390 3647100 3902397 3938868 4376520 4923585 5203196 5470650 6503995 6564780 7294200 7804794 7877736 8205975 9847170 10406392 10941300 11707191 13007990 13129560 15609588 16411950 19511985 19694340 21882600 23414382 24617925 26015980 31219176 32519975 32823900 35121573 39023970 39388680 46828764 49235850 52031960 58535955 65039950 65647800 70243146 78047940 93657528 97559925 98471700 105364719 117071910 130079900 140486292 156095880 175607865 195119850 196943400 210729438 234143820 260159800 280972584 292679775 351215730 390239700 421458876 468287640 526823595 585359550 702431460 780479400 842917752 878039325 1053647190 1170719100 1404862920 1756078650 2107294380 2341438200 2634117975 3512157300 4214588760 5268235950 7024314600 10536471900 21072943800
• Sum of all divisors σ(n): 73879545960
• Sum of proper divisors (its aliquot sum) s(n): 52806602160
• 21072943800 is an abundant number, because the sum of its proper divisors (52806602160) is greater than itself. Its abundance is 31733658360

Bases of 21072943800

• Binary: 10011101000000010111001101010111000₂
• Hexadecimal: 0x4E80B9AB8
• Base-36: 9OIABI0

Squares and roots of 21072943800

• 21072943800 squared (21072943800²) is 444068960397958440000
• 21072943800 cubed (21072943800³) is 9357840245790603840855672000000
• The square root of 21072943800 is 145165.2293078477
• The cube root of 21072943800 is 2762.1148724315

Scales and comparisons

• 21,072,943,800 seconds is equal to 670 years, 2 weeks, 5 days, 19 hours, 30 minutes.
• To count from 1 to 21,072,943,800 would take you about one thousand, three hundred forty 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 21072943800 cubic inches would be around 230.2 feet tall.

Recreational maths with 21072943800

• 21072943800 backwards is 00834927012
• 21072943800 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21072943800's digits is 36
• More coming soon!