12540843840

Names of 12540843840

• Cardinal: 12540843840 can be written as Twelve billion, five hundred forty million, eight hundred forty-three thousand, eight hundred forty.

Scientific notation

• Scientific notation: 1.254084384 × 10¹⁰

Factors of 12540843840

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 2060

Divisors of 12540843840

• Number of divisors d(n): 448
• Complete list of divisors:
  1 2 3 4 5 6 7 8 10 12 14 15 16 20 21 23 24 28 30 32 35 40 41 42 46 48 56 60 64 69 70 80 82 84 92 96 105 112 115 120 123 138 140 160 161 164 168 184 192 205 210 224 230 240 246 276 280 287 320 322 328 336 345 368 410 420 448 460 480 483 492 552 560 574 615 644 656 672 690 736 805 820 840 861 920 943 960 966 984 1104 1120 1148 1230 1288 1312 1344 1380 1435 1472 1610 1640 1680 1722 1840 1886 1932 1968 1979 2208 2240 2296 2415 2460 2576 2624 2760 2829 2870 3220 3280 3360 3444 3680 3772 3864 3936 3958 4305 4416 4592 4715 4830 4920 5152 5520 5658 5740 5937 6440 6560 6601 6720 6888 7360 7544 7728 7872 7916 8610 9184 9430 9660 9840 9895 10304 11040 11316 11480 11874 12880 13120 13202 13776 13853 14145 15088 15456 15832 17220 18368 18860 19320 19680 19790 19803 22080 22632 22960 23748 25760 26404 27552 27706 28290 29685 30176 30912 31664 33005 34440 37720 38640 39360 39580 39606 41559 45264 45517 45920 47496 51520 52808 55104 55412 56580 59370 60352 63328 66010 68880 69265 75440 77280 79160 79212 81139 83118 90528 91034 91840 94992 99015 105616 110824 113160 118740 126656 132020 136551 137760 138530 150880 154560 158320 158424 162278 166236 181056 182068 189984 198030 207795 211232 221648 226320 227585 237480 243417 264040 273102 275520 277060 301760 316640 316848 318619 324556 332472 364136 379968 396060 405695 415590 422464 443296 452640 455170 474960 486834 528080 546204 554120 567973 633280 633696 637238 649112 664944 682755 728272 792120 811390 831180 886592 905280 910340 949920 955857 973668 1056160 1092408 1108240 1135946 1217085 1267392 1274476 1298224 1329888 1365510 1456544 1584240 1593095 1622780 1662360 1703919 1820680 1866197 1899840 1911714 1947336 2112320 2184816 2216480 2271892 2434170 2548952 2596448 2659776 2731020 2839865 2913088 3168480 3186190 3245560 3324720 3407838 3641360 3732394 3823428 3894672 4369632 4432960 4543784 4779285 4868340 5097904 5192896 5462040 5598591 5679730 6336960 6372380 6491120 6649440 6815676 7282720 7464788 7646856 7789344 8519595 8739264 9087568 9330985 9558570 9736680 10195808 10924080 11197182 11359460 12744760 12982240 13063379 13298880 13631352 14565440 14929576 15293712 15578688 17039190 18175136 18661970 19117140 19473360 20391616 21848160 22394364 22718920 25489520 25964480 26126758 27262704 27992955 29859152 30587424 34078380 36350272 37323940 38234280 38946720 39190137 43696320 44788728 45437840 50979040 52253516 54525408 55985910 59718304 61174848 65316895 68156760 74647880 76468560 77893440 78380274 89577456 90875680 101958080 104507032 109050816 111971820 119436608 130633790 136313520 149295760 152937120 156760548 179154912 181751360 195950685 209014064 223943640 261267580 272627040 298591520 305874240 313521096 358309824 391901370 418028128 447887280 522535160 545254080 597183040 627042192 783802740 836056256 895774560 1045070320 1254084384 1567605480 1791549120 2090140640 2508168768 3135210960 4180281280 6270421920 12540843840
• Sum of all divisors σ(n): 48666562560
• Sum of proper divisors (its aliquot sum) s(n): 36125718720
• 12540843840 is an abundant number, because the sum of its proper divisors (36125718720) is greater than itself. Its abundance is 23584874880

Bases of 12540843840

• Binary: 1011101011011111100001011101000000₂
• Hexadecimal: 0x2EB7E1740
• Base-36: 5REHT1C

Squares and roots of 12540843840

• 12540843840 squared (12540843840²) is 157272764219265945600
• 12540843840 cubed (12540843840³) is 1972333176358953743199535104000
• The square root of 12540843840 is 111985.9091136023
• The cube root of 12540843840 is 2323.3194061487

Scales and comparisons

• 12,540,843,840 seconds is equal to 398 years, 39 weeks, 3 days, 15 hours, 44 minutes.
• To count from 1 to 12,540,843,840 would take you about seven hundred ninety-seven 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 12540843840 cubic inches would be around 193.6 feet tall.

Recreational maths with 12540843840

• 12540843840 backwards is 04834804521
• The number of decimal digits it has is: 11
• The sum of 12540843840's digits is 39
• More coming soon!