21051437220

Names of 21051437220

• Cardinal: 21051437220 can be written as Twenty-one billion, fifty-one million, four hundred thirty-seven thousand, two hundred twenty.

Scientific notation

• Scientific notation: 2.105143722 × 10¹⁰

Factors of 21051437220

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 618

Divisors of 21051437220

• Number of divisors d(n): 576
• Complete list of divisors:
  1 2 3 4 5 6 9 10 11 12 15 18 19 20 22 27 30 31 33 36 38 44 45 54 55 57 60 62 66 76 90 93 95 99 108 110 114 121 124 132 135 155 165 171 180 186 190 198 209 220 228 242 270 279 285 297 310 330 341 342 363 372 380 396 418 465 484 495 513 540 547 558 570 589 594 605 620 627 660 682 684 726 836 837 855 930 990 1023 1026 1045 1089 1094 1116 1140 1178 1188 1210 1254 1364 1395 1452 1485 1641 1674 1705 1710 1767 1815 1860 1881 1980 2046 2052 2090 2178 2188 2299 2356 2420 2508 2565 2735 2790 2945 2970 3069 3135 3267 3282 3348 3410 3420 3534 3630 3751 3762 4092 4180 4185 4356 4598 4923 5115 5130 5301 5445 5470 5580 5643 5890 5940 6017 6138 6270 6479 6534 6564 6820 6897 7068 7260 7502 7524 8205 8370 8835 9196 9207 9405 9846 10230 10260 10393 10602 10890 10940 11253 11286 11495 11780 12034 12276 12540 12958 13068 13794 14769 15004 15345 15903 16335 16410 16740 16957 17670 18051 18414 18755 18810 19437 19692 20460 20691 20786 21204 21780 22506 22572 22990 24068 24615 25916 26505 27588 28215 29538 30085 30690 31179 31806 32395 32670 32820 33759 33914 34485 35340 36102 36828 37510 37620 38874 41382 41572 45012 45980 46035 49230 50871 51965 53010 54153 56265 56430 58311 59076 60170 61380 62073 62358 63612 64790 65340 66187 67518 67828 68970 71269 72204 73845 75020 77748 79515 82764 84785 90255 92070 93537 97185 98460 101277 101742 103455 103930 106020 108306 112530 112860 114323 116622 120340 124146 124716 129580 132374 135036 137940 142538 147690 152613 155895 159030 162459 168795 169570 174933 180510 184140 186527 187074 194370 198561 202554 203484 206910 207860 213807 216612 225060 228646 233244 248292 254355 264748 270765 280611 285076 291555 295380 305226 310365 311790 318060 322183 324918 330935 337590 339140 342969 349866 356345 361020 373054 374148 388740 397122 405108 413820 427614 457292 457839 467685 506385 508710 541530 559581 561222 571615 583110 595683 610452 620730 623580 641421 644366 649836 661870 675180 685938 699732 712690 746108 763065 794244 812295 855228 874665 915678 932635 935370 966549 992805 1012770 1017420 1028907 1069035 1083060 1119162 1122444 1143230 1166220 1191366 1241460 1257553 1282842 1288732 1323740 1371876 1403055 1425380 1526130 1610915 1624590 1678743 1714845 1749330 1787049 1831356 1865270 1870740 1924263 1933098 1985610 2025540 2051797 2057814 2138070 2238324 2286460 2289195 2382732 2515106 2565684 2797905 2806110 2899647 2978415 3052260 3086721 3207105 3221830 3249180 3357486 3429690 3498660 3544013 3574098 3730540 3772659 3848526 3866196 3971220 4103594 4115628 4276140 4578390 4832745 5030212 5036229 5144535 5595810 5612220 5799294 5956830 6155391 6173442 6287765 6414210 6443660 6714972 6859380 7088026 7148196 7545318 7697052 8207188 8393715 8698941 8935245 9156780 9621315 9665490 10072458 10258985 10289070 10632039 11191620 11317977 11598588 11913660 12310782 12346884 12575530 12828420 14176052 14498235 15090636 15433605 16787430 17397882 17720065 17870490 18466173 18863295 19242630 19330980 20144916 20517970 20578140 21264078 22635954 24621564 25151060 25181145 28996470 30776955 30867210 31896117 33574860 33953931 34795764 35440130 35740980 36932346 37726590 38485260 38984143 41035940 42528156 43494705 45271908 50362290 53160195 55398519 56589885 57992940 61553910 61734420 63792234 67907862 70880260 73864692 75453180 77968286 86989410 92330865 95688351 100724580 106320390 110797038 113179770 116952429 123107820 127584468 135815724 155936572 159480585 169769655 173978820 184661730 191376702 194920715 212640780 221594076 226359540 233904858 276992595 318961170 339539310 350857287 369323460 382753404 389841430 467809716 478441755 553985190 584762145 637922340 679078620 701714574 779682860 956883510 1052571861 1107970380 1169524290 1403429148 1754286435 1913767020 2105143722 2339048580 3508572870 4210287444 5262859305 7017145740 10525718610 21051437220
• Sum of all divisors σ(n): 78364876800
• Sum of proper divisors (its aliquot sum) s(n): 57313439580
• 21051437220 is an abundant number, because the sum of its proper divisors (57313439580) is greater than itself. Its abundance is 36262002360

Bases of 21051437220

• Binary: 10011100110110000110111000010100100₂
• Hexadecimal: 0x4E6C370A4
• Base-36: 9O5HCX0

Squares and roots of 21051437220

• 21051437220 squared (21051437220²) is 443163009027601328400
• 21051437220 cubed (21051437220³) is 9329218262770842612001203048000
• The square root of 21051437220 is 145091.1341881371
• The cube root of 21051437220 is 2761.1749014877

Scales and comparisons

• 21,051,437,220 seconds is equal to 669 years, 19 weeks, 1 day, 21 hours, 27 minutes.
• To count from 1 to 21,051,437,220 would take you about one thousand, three hundred thirty-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 21051437220 cubic inches would be around 230.1 feet tall.

Recreational maths with 21051437220

• 21051437220 backwards is 02273415012
• 21051437220 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21051437220's digits is 27
• More coming soon!