21018069800

Names of 21018069800

• Cardinal: 21018069800 can be written as Twenty-one billion, eighteen million, sixty-nine thousand, eight hundred.

Scientific notation

• Scientific notation: 2.10180698 × 10¹⁰

Factors of 21018069800

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 503

Divisors of 21018069800

• Number of divisors d(n): 432
• Complete list of divisors:
  1 2 4 5 7 8 10 13 14 19 20 25 26 28 35 38 40 49 50 52 56 65 70 76 91 95 98 100 104 130 133 140 152 175 182 190 196 200 245 247 260 266 280 325 350 361 364 380 392 455 457 475 490 494 520 532 637 650 665 700 722 728 760 910 914 931 950 980 988 1064 1225 1235 1274 1300 1330 1400 1444 1729 1805 1820 1828 1862 1900 1960 1976 2275 2285 2450 2470 2527 2548 2600 2660 2888 3185 3199 3325 3458 3610 3640 3656 3724 3800 4550 4570 4655 4693 4900 4940 5054 5096 5320 5941 6175 6370 6398 6650 6916 7220 7448 8645 8683 9025 9100 9140 9310 9386 9800 9880 10108 11425 11882 12103 12350 12635 12740 12796 13300 13832 14440 15925 15995 17290 17366 17689 18050 18200 18280 18620 18772 20216 22393 22850 23275 23465 23764 24206 24700 25270 25480 25592 26600 29705 31850 31990 32851 34580 34732 35378 36100 37240 37544 41587 43225 43415 44786 45700 46550 46930 47528 48412 49400 50540 59410 60515 60781 63175 63700 63980 65702 69160 69464 70756 72200 79975 83174 86450 86830 88445 89572 91400 93100 93860 96824 101080 111965 112879 117325 118820 121030 121562 126350 127400 127960 131404 141512 148525 159950 164255 164977 166348 172900 173660 176890 179144 186200 187720 207935 217075 223930 225758 229957 234650 237640 242060 243124 252700 262808 291109 297050 302575 303905 319900 328510 329954 332696 345800 347320 353780 415870 425467 434150 442225 447860 451516 459914 469300 484120 486248 505400 559825 564395 582218 594100 605150 607810 639800 657020 659908 707560 790153 821275 824885 831740 850934 868300 884450 895720 903032 919828 938600 1039675 1119650 1128790 1149785 1154839 1164436 1188200 1210300 1215620 1314040 1319816 1455545 1519525 1580306 1642550 1649770 1663480 1701868 1736600 1768900 1839656 2079350 2127335 2144701 2239300 2257580 2299570 2309678 2328872 2420600 2431240 2821975 2911090 3039050 3160612 3285100 3299540 3403736 3537800 3950765 4124425 4158700 4254670 4289402 4478600 4515160 4599140 4619356 5531071 5643950 5748925 5774195 5822180 6078100 6321224 6570200 6599080 7277725 7901530 8083873 8248850 8317400 8509340 8578804 9198280 9238712 10636675 10723505 11062142 11287900 11497850 11548390 11644360 12156200 14555450 15012907 15803060 16167746 16497700 17018680 17157608 19753825 21273350 21447010 22124284 22575800 22995700 23096780 27655355 28870975 29110900 30025814 31606120 32335492 32995400 39507650 40419365 42546700 42894020 44248568 45991400 46193560 53617525 55310710 57741950 58221800 60051628 64670984 75064535 79015300 80838730 85093400 85788040 105090349 107235050 110621420 115483900 120103256 138276775 150129070 158030600 161677460 202096825 210180698 214470100 221242840 230967800 276553550 300258140 323354920 375322675 404193650 420361396 428940200 525451745 553107100 600516280 750645350 808387300 840722792 1050903490 1106214200 1501290700 1616774600 2101806980 2627258725 3002581400 4203613960 5254517450 10509034900 21018069800
• Sum of all divisors σ(n): 64750972860
• Sum of proper divisors (its aliquot sum) s(n): 43732903060
• 21018069800 is an abundant number, because the sum of its proper divisors (43732903060) is greater than itself. Its abundance is 22714833260

Bases of 21018069800

• Binary: 10011100100110001100100101100101000₂
• Hexadecimal: 0x4E4C64B28
• Base-36: 9NLM6G8

Squares and roots of 21018069800

• 21018069800 squared (21018069800²) is 441759258117672040000
• 21018069800 cubed (21018069800³) is 9284926921913447550228392000000
• The square root of 21018069800 is 144976.1007890611
• The cube root of 21018069800 is 2759.7152702845

Scales and comparisons

• 21,018,069,800 seconds is equal to 668 years, 16 weeks, 16 hours, 43 minutes, 20 seconds.
• To count from 1 to 21,018,069,800 would take you about one thousand, three hundred thirty-six 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 21018069800 cubic inches would be around 230 feet tall.

Recreational maths with 21018069800

• 21018069800 backwards is 00896081012
• 21018069800 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21018069800's digits is 35
• More coming soon!