21379206420

Names of 21379206420

• Cardinal: 21379206420 can be written as Twenty-one billion, three hundred seventy-nine million, two hundred six thousand, four hundred twenty.

Scientific notation

• Scientific notation: 2.137920642 × 10¹⁰

Factors of 21379206420

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 294

Divisors of 21379206420

• Number of divisors d(n): 720
• Complete list of divisors:
  1 2 3 4 5 6 9 10 11 12 13 15 18 20 22 26 27 30 31 33 36 39 44 45 52 54 55 60 62 65 66 78 81 90 93 99 108 110 117 124 130 132 135 143 155 156 162 165 169 180 186 195 198 220 229 234 260 270 279 286 297 310 324 330 338 341 351 372 390 396 403 405 429 458 465 468 495 507 540 558 572 585 594 620 660 676 682 687 702 715 780 806 810 837 845 858 891 916 930 990 1014 1023 1053 1116 1145 1170 1188 1209 1287 1364 1374 1395 1404 1430 1485 1521 1612 1620 1674 1690 1705 1716 1755 1782 1859 1860 1980 2015 2028 2046 2061 2106 2145 2290 2340 2418 2511 2519 2535 2574 2748 2790 2860 2970 2977 3042 3069 3348 3380 3410 3435 3510 3564 3627 3718 3861 4030 4092 4122 4185 4212 4290 4433 4455 4563 4580 4836 5022 5038 5070 5115 5148 5239 5265 5577 5580 5940 5954 6045 6084 6138 6183 6435 6820 6870 7020 7099 7254 7436 7557 7605 7722 8060 8244 8370 8580 8866 8910 8931 9126 9207 9295 10044 10076 10140 10230 10305 10478 10530 10881 11154 11583 11908 12090 12276 12366 12555 12595 12870 13299 13689 13740 14198 14508 14885 15114 15210 15345 15444 15717 16731 16740 17732 17820 17862 18135 18252 18414 18549 18590 19305 20460 20610 20956 21060 21297 21762 22165 22308 22671 22815 23166 24180 24732 25110 25190 25740 26195 26598 26793 27378 27621 27885 28396 29770 30228 30420 30690 30915 31434 32643 32747 33462 35495 35724 36270 36828 37098 37180 37785 38610 38701 39897 41220 42594 43524 44330 44655 45342 45630 46035 46332 47151 50193 50220 50380 52390 53196 53586 54405 54756 55242 55770 57629 57915 59540 61380 61830 62868 63891 65286 65494 66495 66924 68013 68445 70990 72540 74196 75570 77220 77402 78089 78585 79794 80379 83655 85188 88660 89310 90684 91260 92070 92287 92745 94302 98241 100386 104780 106485 107172 108810 110484 111540 113355 115258 115830 116103 119691 123660 127782 130572 130988 132990 133965 136026 136890 138105 141453 141980 150579 151140 154804 156178 157170 159588 160758 163215 163735 167310 172887 178620 184140 184574 185490 188604 191673 193505 196482 199485 200772 204039 212970 217620 226710 230516 231660 232206 234267 235755 239382 241137 250965 255564 265980 267930 272052 273780 276210 276861 282906 288145 294723 301158 312356 314340 319455 321516 326430 327470 334620 340065 345774 348309 359073 369148 370980 383346 387010 390445 392964 398970 401895 408078 424359 425711 425940 453420 461435 464412 468534 471510 478764 482274 491205 501930 518661 535860 552420 553722 565812 575019 576290 580515 589446 598455 602316 638910 652860 654940 680130 691548 696618 702801 707265 718146 752895 766692 774020 780890 797940 803790 816156 830583 848718 851422 864435 884169 922870 937068 943020 958365 964548 982410 1003860 1015157 1020195 1037322 1044927 1107444 1150038 1152580 1161030 1171335 1178892 1196910 1199731 1205685 1277133 1277820 1360260 1384305 1393236 1405602 1414530 1436292 1473615 1505790 1555983 1561780 1607580 1661166 1697436 1702844 1728870 1741545 1768338 1795365 1845740 1916730 1964820 2030314 2040390 2074644 2089854 2108403 2121795 2128555 2300076 2322060 2342670 2393820 2399462 2411370 2491749 2554266 2593305 2652507 2768610 2811204 2829060 2875095 2947230 3011580 3045471 3111966 3134781 3322332 3457740 3483090 3514005 3536676 3590730 3599193 3831399 3833460 4060628 4080780 4152915 4179708 4216806 4243590 4257110 4420845 4667949 4685340 4798924 4822740 4983498 5075785 5108532 5186610 5224635 5305014 5537220 5750190 5894460 5998655 6090942 6223932 6269562 6325209 6385665 6966180 7028010 7181460 7198386 7475247 7662798 7779915 8305830 8433612 8487180 8514220 8841690 9136413 9335898 9966996 10151570 10373220 10449270 10542015 10610028 10797579 11494197 11500380 11997310 12181884 12458745 12539124 12650418 12771330 13197041 13262535 14056020 14396772 14950494 15227355 15325596 15559830 15673905 16611660 17683380 17995965 18272826 18671796 19156995 20303140 20898540 21084030 21595158 22988394 23339745 23994620 24917490 25300836 25542660 26394082 26525070 27409239 29900988 30454710 31119660 31347810 31626045 32392737 34482591 35991930 36545652 37376235 38313990 39591123 42168060 43190316 45682065 45976788 46679490 49834980 52788164 53050140 53987895 54818478 57470985 60909420 62695620 63252090 64785474 65985205 68965182 71983860 74752470 76627980 79182246 82227717 91364130 93358980 97178211 107975790 109636956 114941970 118773369 126504180 129570948 131970410 137046195 137930364 149504940 158364492 161963685 164455434 172412955 182728260 194356422 197955615 215951580 229883940 237546738 263940820 274092390 323927370 328910868 344825910 356320107 388712844 395911230 411138585 475093476 485891055 548184780 593866845 647854740 689651820 712640214 791822460 822277170 971782110 1068960321 1187733690 1425280428 1644554340 1781600535 1943564220 2137920642 2375467380 3563201070 4275841284 5344801605 7126402140 10689603210 21379206420
• Sum of all divisors σ(n): 82138129920
• Sum of proper divisors (its aliquot sum) s(n): 60758923500
• 21379206420 is an abundant number, because the sum of its proper divisors (60758923500) is greater than itself. Its abundance is 39379717080

Bases of 21379206420

• Binary: 10011111010010011001100110100010100₂
• Hexadecimal: 0x4FA4CCD14
• Base-36: 9TKML90

Squares and roots of 21379206420

• 21379206420 squared (21379206420²) is 457070467148969216400
• 21379206420 cubed (21379206420³) is 9771803865663641767641249288000
• The square root of 21379206420 is 146216.3001173261
• The cube root of 21379206420 is 2775.4315880957

Scales and comparisons

• 21,379,206,420 seconds is equal to 679 years, 41 weeks, 1 day, 12 hours, 27 minutes.
• To count from 1 to 21,379,206,420 would take you about one thousand, three hundred fifty-nine 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 21379206420 cubic inches would be around 231.3 feet tall.

Recreational maths with 21379206420

• 21379206420 backwards is 02460297312
• 21379206420 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21379206420's digits is 36
• More coming soon!