21366792720

Names of 21366792720

• Cardinal: 21366792720 can be written as Twenty-one billion, three hundred sixty-six million, seven hundred ninety-two thousand, seven hundred twenty.

Scientific notation

• Scientific notation: 2.136679272 × 10¹⁰

Factors of 21366792720

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 19230

Divisors of 21366792720

• Number of divisors d(n): 480
• Complete list of divisors:
  1 2 3 4 5 6 7 8 9 10 12 13 14 15 16 17 18 20 21 24 26 28 30 34 35 36 39 40 42 45 48 51 52 56 60 63 65 68 70 72 78 80 84 85 90 91 102 104 105 112 117 119 120 126 130 136 140 144 153 156 168 170 180 182 195 204 208 210 221 234 238 240 252 255 260 272 273 280 306 312 315 336 340 357 360 364 390 408 420 442 455 468 476 504 510 520 546 560 585 595 612 624 630 663 680 714 720 728 765 780 816 819 840 884 910 936 952 1008 1020 1040 1071 1092 1105 1170 1190 1224 1260 1326 1360 1365 1428 1456 1530 1547 1560 1638 1680 1768 1785 1820 1872 1904 1989 2040 2142 2184 2210 2340 2380 2448 2520 2652 2730 2856 3060 3094 3120 3276 3315 3536 3570 3640 3978 4080 4095 4284 4368 4420 4641 4680 4760 5040 5304 5355 5460 5712 6120 6188 6552 6630 7140 7280 7735 7956 8190 8568 8840 9282 9360 9520 9945 10608 10710 10920 12240 12376 13104 13260 13923 14280 15470 15912 16380 17136 17680 18564 19183 19890 21420 21840 23205 24752 26520 27846 28560 30940 31824 32760 37128 38366 39780 42840 46410 53040 55692 57549 61880 65520 69615 74256 76732 79560 85680 92820 95915 111384 115098 123760 134281 139230 153464 159120 172647 185640 191830 222768 230196 249379 268562 278460 287745 306928 326111 345294 371280 383660 402843 460392 498758 537124 556920 575490 652222 671405 690588 748137 767320 805686 863235 920784 978333 997516 1074248 1113840 1150980 1208529 1246895 1304444 1342810 1381176 1496274 1534640 1611372 1630555 1726470 1745653 1956666 1995032 2014215 2148496 2244411 2282777 2301960 2417058 2493790 2608888 2685620 2762352 2934999 2992548 3222744 3261110 3452940 3491306 3740685 3913332 3990064 4028430 4239443 4488822 4565554 4603920 4834116 4891665 4987580 5217776 5236959 5371240 5869998 5985096 6042645 6445488 6522220 6848331 6905880 6982612 7481370 7826664 8056860 8478886 8728265 8977644 9131108 9668232 9783330 9975160 10473918 10742480 11222055 11413885 11739996 11970192 12085290 12718329 13044440 13696662 13811760 13965224 14674995 14962740 15653328 15710877 16113720 16957772 17456530 17955288 18262216 19336464 19566660 19950320 20544993 20947836 21197215 22444110 22827770 23479992 24170580 25436658 26088880 26184795 27393324 27930448 29349990 29676101 29925480 31421754 32227440 33915544 34241655 34913060 35910576 36524432 38154987 39133320 41089986 41895672 42394430 44888220 45655540 46959984 48341160 50873316 52369590 54786648 58699980 59352202 59850960 62843508 63591645 67831088 68483310 69826120 76309974 78266640 78554385 82179972 83791344 84788860 89028303 89776440 91311080 96682320 101746632 102724965 104739180 109573296 117399960 118704404 125687016 127183290 136966620 139652240 148380505 152619948 157108770 164359944 169577720 178056606 179552880 182622160 190774935 203493264 205449930 209478360 234799920 237408808 251374032 254366580 267084909 273933240 296761010 305239896 314217540 328719888 339155440 356113212 381549870 410899860 418956720 445141515 474817616 508733160 534169818 547866480 593522020 610479792 628435080 712226424 763099740 821799720 890283030 1017466320 1068339636 1187044040 1256870160 1335424545 1424452848 1526199480 1643599440 1780566060 2136679272 2374088080 2670849090 3052398960 3561132120 4273358544 5341698180 7122264240 10683396360 21366792720
• Sum of all divisors σ(n): 93516014592
• Sum of proper divisors (its aliquot sum) s(n): 72149221872
• 21366792720 is an abundant number, because the sum of its proper divisors (72149221872) is greater than itself. Its abundance is 50782429152

Bases of 21366792720

• Binary: 10011111001100011110110001000010000₂
• Hexadecimal: 0x4F98F6210
• Base-36: 9TD8IS0

Squares and roots of 21366792720

• 21366792720 squared (21366792720²) is 456539831139444998400
• 21366792720 cubed (21366792720³) is 9754791940380322696653531648000
• The square root of 21366792720 is 146173.8441719311
• The cube root of 21366792720 is 2774.8943052025

Scales and comparisons

• 21,366,792,720 seconds is equal to 679 years, 20 weeks, 4 days, 20 hours, 12 minutes.
• To count from 1 to 21,366,792,720 would take you about one thousand, three hundred fifty-eight 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 21366792720 cubic inches would be around 231.2 feet tall.

Recreational maths with 21366792720

• 21366792720 backwards is 02729766312
• 21366792720 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21366792720's digits is 45
• More coming soon!