21840478400

Names of 21840478400

• Cardinal: 21840478400 can be written as Twenty-one billion, eight hundred forty million, four hundred seventy-eight thousand, four hundred.

Scientific notation

• Scientific notation: 2.18404784 × 10¹⁰

Factors of 21840478400

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 116

Divisors of 21840478400

• Number of divisors d(n): 378
• Complete list of divisors:
  1 2 4 5 8 10 13 16 20 25 26 32 37 40 50 52 59 64 65 74 80 100 104 118 130 148 160 169 185 200 208 236 260 295 296 320 325 338 370 400 416 472 481 520 590 592 650 676 740 767 800 832 845 925 944 962 1040 1180 1184 1300 1352 1369 1475 1480 1534 1600 1690 1850 1888 1924 2080 2183 2360 2368 2405 2600 2704 2738 2950 2960 3068 3380 3700 3776 3835 3848 4160 4225 4366 4720 4810 5200 5408 5476 5900 5920 6136 6253 6760 6845 7400 7670 7696 8450 8732 9440 9620 9971 10400 10816 10915 10952 11800 11840 12025 12272 12506 13520 13690 14800 15340 15392 16900 17464 17797 18880 19175 19240 19942 20800 21830 21904 23600 24050 24544 25012 27040 27380 28379 29600 30680 30784 31265 33800 34225 34928 35594 38350 38480 39884 43660 43808 47200 48100 49088 49855 50024 54080 54575 54760 56758 59200 61360 62530 67600 68450 69856 71188 76700 76960 79768 80771 87320 87616 88985 94400 96200 99710 100048 109150 109520 113516 122720 125060 135200 136900 139712 141895 142376 153400 153920 156325 159536 161542 174640 177970 192400 199420 200096 218300 219040 227032 231361 245440 249275 250120 270400 273800 283790 284752 306800 312650 319072 323084 349280 355940 368927 384800 398840 400192 403855 436600 438080 444925 454064 462722 498550 500240 547600 567580 569504 613600 625300 638144 646168 698560 709475 711880 737854 769600 797680 807710 873200 889850 908128 925444 997100 1000480 1050023 1095200 1135160 1139008 1156805 1227200 1250600 1292336 1418950 1423760 1475708 1595360 1615420 1746400 1779700 1816256 1844635 1850888 1994200 2000960 2019275 2100046 2190400 2270320 2313610 2501200 2584672 2837900 2847520 2951416 3190720 3230840 3492800 3559400 3689270 3701776 3988400 4038550 4200092 4540640 4627220 5002400 5169344 5250115 5675800 5695040 5784025 5902832 6461680 7118800 7378540 7403552 7976800 8077100 8400184 9081280 9223175 9254440 10004800 10500230 11351600 11568050 11805664 12923360 13650299 14237600 14757080 14807104 15953600 16154200 16800368 18446350 18508880 21000460 22703200 23136100 23611328 25846720 26250575 27300598 28475200 29514160 32308400 33600736 36892700 37017760 42000920 45406400 46272200 52501150 54601196 59028320 64616800 67201472 68251495 73785400 74035520 84001840 92544400 105002300 109202392 118056640 129233600 136502990 147570800 168003680 185088800 210004600 218404784 273005980 295141600 336007360 341257475 370177600 420009200 436809568 546011960 590283200 682514950 840018400 873619136 1092023920 1365029900 1680036800 2184047840 2730059800 4368095680 5460119600 10920239200 21840478400
• Sum of all divisors σ(n): 60822161820
• Sum of proper divisors (its aliquot sum) s(n): 38981683420
• 21840478400 is an abundant number, because the sum of its proper divisors (38981683420) is greater than itself. Its abundance is 17141205020

Bases of 21840478400

• Binary: 10100010101110010110100000011000000₂
• Hexadecimal: 0x515CB40C0
• Base-36: A1798ZK

Squares and roots of 21840478400

• 21840478400 squared (21840478400²) is 477006496740866560000
• 21840478400 cubed (21840478400³) is 10418050088728566500962304000000
• The square root of 21840478400 is 147785.2441889921
• The cube root of 21840478400 is 2795.2503831941

Scales and comparisons

• 21,840,478,400 seconds is equal to 694 years, 23 weeks, 6 days, 7 hours, 33 minutes, 20 seconds.
• To count from 1 to 21,840,478,400 would take you about one thousand, three hundred eighty-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 21840478400 cubic inches would be around 232.9 feet tall.

Recreational maths with 21840478400

• 21840478400 backwards is 00487404812
• The number of decimal digits it has is: 11
• The sum of 21840478400's digits is 38
• More coming soon!