21401432640

Names of 21401432640

• Cardinal: 21401432640 can be written as Twenty-one billion, four hundred one million, four hundred thirty-two thousand, six hundred forty.

Scientific notation

• Scientific notation: 2.140143264 × 10¹⁰

Factors of 21401432640

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 3197

Divisors of 21401432640

• Number of divisors d(n): 336
• Complete list of divisors:
  1 2 3 4 5 6 7 8 9 10 12 14 15 16 18 20 21 24 28 30 32 35 36 40 42 45 48 56 60 63 64 70 72 80 84 90 96 105 112 120 126 140 144 160 168 180 192 210 224 240 252 280 288 315 320 336 360 379 420 448 480 504 560 576 630 672 720 758 840 960 1008 1120 1137 1260 1344 1440 1516 1680 1895 2016 2240 2274 2520 2653 2801 2880 3032 3360 3411 3790 4032 4548 5040 5306 5602 5685 6064 6720 6822 7580 7959 8403 9096 10080 10612 11204 11370 12128 13265 13644 14005 15160 15918 16806 17055 18192 19607 20160 21224 22408 22740 23877 24256 25209 26530 27288 28010 30320 31836 33612 34110 36384 39214 39795 42015 42448 44816 45480 47754 50418 53060 54576 56020 58821 60640 63672 67224 68220 72768 78428 79590 84030 84896 89632 90960 95508 98035 100836 106120 109152 112040 117642 119385 121280 126045 127344 134448 136440 156856 159180 168060 169792 176463 179264 181920 191016 196070 201672 212240 218304 224080 235284 238770 252090 254688 268896 272880 294105 313712 318360 336120 352926 363840 382032 392140 403344 424480 448160 470568 477540 504180 509376 537792 545760 588210 627424 636720 672240 705852 764064 784280 806688 848960 882315 896320 941136 955080 1008360 1061579 1091520 1176420 1254848 1273440 1344480 1411704 1528128 1568560 1613376 1764630 1882272 1910160 2016720 2123158 2352840 2546880 2688960 2823408 3137120 3184737 3529260 3764544 3820320 4033440 4246316 4705680 5307895 5646816 6274240 6369474 7058520 7431053 7640640 8066880 8492632 9411360 9554211 10615790 11293632 12738948 14117040 14862106 15923685 16985264 18822720 19108422 21231580 22293159 25477896 28234080 29724212 31847370 33970528 37155265 38216844 42463160 44586318 47771055 50955792 56468160 59448424 63694740 66879477 67941056 74310530 76433688 84926320 89172636 95542110 101911584 111465795 118896848 127389480 133758954 148621060 152867376 169852640 178345272 191084220 203823168 222931590 237793696 254778960 267517908 297242120 305734752 334397385 339705280 356690544 382168440 445863180 475587392 509557920 535035816 594484240 611469504 668794770 713381088 764336880 891726360 1019115840 1070071632 1188968480 1337589540 1426762176 1528673760 1783452720 2140143264 2377936960 2675179080 3057347520 3566905440 4280286528 5350358160 7133810880 10700716320 21401432640
• Sum of all divisors σ(n): 84380100480
• Sum of proper divisors (its aliquot sum) s(n): 62978667840
• 21401432640 is an abundant number, because the sum of its proper divisors (62978667840) is greater than itself. Its abundance is 41577235200

Bases of 21401432640

• Binary: 10011111011100111111111001001000000₂
• Hexadecimal: 0x4FB9FF240
• Base-36: 9TXUZ40

Squares and roots of 21401432640

• 21401432640 squared (21401432640²) is 458021319044457369600
• 21401432640 cubed (21401432640³) is 9802312407213903560845983744000
• The square root of 21401432640 is 146292.2849640403
• The cube root of 21401432640 is 2776.3930517269

Scales and comparisons

• 21,401,432,640 seconds is equal to 680 years, 25 weeks, 6 days, 18 hours, 24 minutes.
• To count from 1 to 21,401,432,640 would take you about one thousand, three hundred sixty 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 21401432640 cubic inches would be around 231.4 feet tall.

Recreational maths with 21401432640

• 21401432640 backwards is 04623410412
• The number of decimal digits it has is: 11
• The sum of 21401432640's digits is 27
• More coming soon!