21428517794400

Names of 21428517794400

• Cardinal: 21428517794400 can be written as Twenty-one trillion, four hundred twenty-eight billion, five hundred seventeen million, seven hundred ninety-four thousand, four hundred.

Scientific notation

• Scientific notation: 2.14285177944 × 10¹³

Factors of 21428517794400

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 10509

Divisors of 21428517794400

• Number of divisors d(n): 324
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 25 27 30 32 36 40 45 48 50 54 60 72 75 80 81 90 96 100 108 120 135 144 150 160 162 180 200 216 225 240 243 270 288 300 324 360 400 405 432 450 480 486 540 600 648 675 720 800 810 864 900 972 1080 1200 1215 1296 1350 1440 1620 1800 1944 2025 2160 2400 2430 2592 2700 3240 3600 3888 4050 4320 4860 5400 6075 6480 7200 7776 8100 9720 10499 10800 12150 12960 16200 19440 20998 21600 24300 31497 32400 38880 41996 48600 52495 62994 64800 83992 94491 97200 104990 125988 157485 167984 188982 194400 209980 251976 262475 283473 314970 335968 377964 419960 472455 503952 524950 566946 629940 755928 787425 839920 850419 944910 1007904 1049900 1133892 1259880 1417365 1511856 1574850 1679840 1700838 1889820 2099800 2267784 2362275 2519760 2551257 2834730 3023712 3149700 3401676 3779640 4199600 4252095 4535568 4724550 5039520 5102514 5669460 6299400 6803352 7086825 7559280 8399200 8504190 9071136 9449100 10205028 11338920 12598800 12756285 13606704 14173650 15118560 17008380 18898200 20410056 21260475 22677840 25197600 25512570 27213408 28347300 34016760 37796400 40820112 42520950 45355680 51025140 56694600 63781425 68033520 75592800 81640224 85041900 102050280 110229001 113389200 127562850 136067040 170083800 204100560 220458002 226778400 255125700 330687003 340167600 408201120 440916004 510251400 551145005 661374006 680335200 881832008 992061009 1020502800 1102290010 1322748012 1653435015 1763664016 1984122018 2041005600 2204580020 2645496024 2755725025 2976183027 3306870030 3527328032 3968244036 4409160040 4960305045 5290992048 5511450050 5952366054 6613740060 7936488072 8267175075 8818320080 8928549081 9920610090 10581984096 11022900100 11904732108 13227480120 14880915135 15872976144 16534350150 17636640160 17857098162 19841220180 22045800200 23809464216 24801525225 26454960240 26785647243 29761830270 31745952288 33068700300 35714196324 39682440360 44091600400 44642745405 47618928432 49603050450 52909920480 53571294486 59523660540 66137400600 71428392648 74404575675 79364880720 88183200800 89285490810 95237856864 99206100900 107142588972 119047321080 132274801200 133928236215 142856785296 148809151350 158729761440 178570981620 198412201800 214285177944 223213727025 238094642160 264549602400 267856472430 285713570592 297618302700 357141963240 396824403600 428570355888 446427454050 476189284320 535712944860 595236605400 669641181075 714283926480 793648807200 857140711776 892854908100 1071425889720 1190473210800 1339282362150 1428567852960 1785709816200 2142851779440 2380946421600 2678564724300 3571419632400 4285703558880 5357129448600 7142839264800 10714258897200 21428517794400
• Sum of all divisors σ(n): 78368379344892
• Sum of proper divisors (its aliquot sum) s(n): 56939861550492
• 21428517794400 is an abundant number, because the sum of its proper divisors (56939861550492) is greater than itself. Its abundance is 35511343756092

Bases of 21428517794400

• Binary: 100110111110100110111001100001111001001100000₂
• Hexadecimal: 0x137D3730F260
• Base-36: 7LG4I8600

Squares and roots of 21428517794400

• 21428517794400 squared (21428517794400²) is 459181374864917440671360000
• 21428517794400 cubed (21428517794400³) is 9839576262149940273713144042448384000000
• The square root of 21428517794400 is 4629094.7057065057
• The cube root of 21428517794400 is 27775.6380408785

Scales and comparisons

• 21,428,517,794,400 seconds is equal to 681,360 years, 30 weeks, 2 days, 6 hours.
• To count from 1 to 21,428,517,794,400 would take you about one million, seven hundred three thousand, four hundred one 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 21428517794400 cubic inches would be around 2314.6 feet tall.

Recreational maths with 21428517794400

• 21428517794400 backwards is 00449771582412
• 21428517794400 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 21428517794400's digits is 54
• More coming soon!