21239931342400

Names of 21239931342400

• Cardinal: 21239931342400 can be written as Twenty-one trillion, two hundred thirty-nine billion, nine hundred thirty-one million, three hundred forty-two thousand, four hundred.

Scientific notation

• Scientific notation: 2.12399313424 × 10¹³

Factors of 21239931342400

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 173

Divisors of 21239931342400

• Number of divisors d(n): 315
• Complete list of divisors:
  1 2 4 5 8 10 16 20 25 29 32 40 50 58 64 80 100 116 137 145 160 200 232 274 290 320 400 464 548 580 685 725 800 841 928 1096 1160 1370 1450 1600 1682 1856 2192 2320 2740 2900 3364 3425 3973 4205 4384 4640 5480 5800 6728 6850 7946 8410 8768 9280 10960 11600 13456 13700 15892 16820 18769 19865 21025 21920 23200 24389 26912 27400 31784 33640 37538 39730 42050 43840 46400 48778 53824 54800 63568 67280 75076 79460 84100 93845 97556 99325 109600 115217 121945 127136 134560 150152 158920 168200 187690 195112 198650 219200 230434 243890 254272 269120 300304 317840 336400 375380 390224 397300 460868 469225 487780 544301 576085 600608 609725 635680 672800 707281 750760 780448 794600 921736 938450 975560 1088602 1152170 1201216 1219450 1271360 1345600 1414562 1501520 1560896 1589200 1843472 1876900 1951120 2177204 2304340 2438900 2721505 2829124 2880425 3003040 3178400 3341293 3536405 3686944 3753800 3902240 4354408 4608680 4877800 5443010 5658248 5760850 6006080 6356800 6682586 7072810 7373888 7507600 7804480 8708816 9217360 9755600 10886020 11316496 11521700 13365172 13607525 14145620 15015200 15784729 16706465 17417632 17682025 18434720 19511200 21772040 22632992 23043400 26730344 27215050 28291240 30030400 31569458 33412930 34835264 35364050 36869440 39022400 43544080 45265984 46086800 53460688 54430100 56582480 63138916 66825860 70728100 78923645 83532325 87088160 92173600 96897497 106921376 108860200 113164960 126277832 133651720 141456200 157847290 167064650 174176320 184347200 193794994 213842752 217720400 226329920 252555664 267303440 282912400 315694580 334129300 387589988 394618225 435440800 457757141 484487485 505111328 534606880 565824800 631389160 668258600 775179976 789236450 870881600 915514282 968974970 1010222656 1069213760 1131649600 1262778320 1336517200 1550359952 1578472900 1831028564 1937949940 2288785705 2422437425 2525556640 2673034400 3100719904 3156945800 3662057128 3875899880 4577571410 4844874850 5051113280 5346068800 6201439808 6313891600 7324114256 7751799760 9155142820 9689749700 11443928525 12627783200 13274957089 14648228512 15503599520 18310285640 19379499400 22887857050 25255566400 26549914178 29296457024 31007199040 36620571280 38758998800 45775714100 53099828356 66374785445 73241142560 77517997600 91551428200 106199656712 132749570890 146482285120 155035995200 183102856400 212399313424 265499141780 331873927225 366205712800 424798626848 530998283560 663747854450 732411425600 849597253696 1061996567120 1327495708900 2123993134240 2654991417800 4247986268480 5309982835600 10619965671200 21239931342400
• Sum of all divisors σ(n): 54528051128719
• Sum of proper divisors (its aliquot sum) s(n): 33288119786319
• 21239931342400 is an abundant number, because the sum of its proper divisors (33288119786319) is greater than itself. Its abundance is 12048188443919

Bases of 21239931342400

• Binary: 100110101000101001110100100000000111001000000₂
• Hexadecimal: 0x13514E900E40
• Base-36: 7J1HMQ0CG

Squares and roots of 21239931342400

• 21239931342400 squared (21239931342400²) is 451134683429865866037760000
• 21239931342400 cubed (21239931342400³) is 9582069702225709940283338325889024000000
• 21239931342400 is a perfect square number. Its square root is 4608680
• The cube root of 21239931342400 is 27693.9159320923

Scales and comparisons

• 21,239,931,342,400 seconds is equal to 675,364 years, 6 weeks, 16 hours, 26 minutes, 40 seconds.
• To count from 1 to 21,239,931,342,400 would take you about one million, six hundred eighty-eight thousand, four hundred ten 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 21239931342400 cubic inches would be around 2307.8 feet tall.

Recreational maths with 21239931342400

• 21239931342400 backwards is 00424313993212
• The number of decimal digits it has is: 14
• The sum of 21239931342400's digits is 43
• More coming soon!