12749542520

Names of 12749542520

• Cardinal: 12749542520 can be written as Twelve billion, seven hundred forty-nine million, five hundred forty-two thousand, five hundred twenty.

Scientific notation

• Scientific notation: 1.274954252 × 10¹⁰

Factors of 12749542520

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 140

Divisors of 12749542520

• Number of divisors d(n): 256
• Complete list of divisors:
  1 2 4 5 8 10 11 13 20 22 26 40 44 52 55 65 88 104 109 110 121 130 143 169 218 220 242 260 286 338 436 440 484 520 545 572 605 676 715 845 872 968 1090 1144 1199 1210 1331 1352 1417 1430 1573 1690 1859 2180 2197 2398 2420 2662 2834 2860 3146 3380 3718 4360 4394 4796 4840 5324 5668 5720 5995 6292 6655 6760 7085 7436 7865 8788 9295 9592 10648 10985 11336 11990 12584 13189 13310 14170 14872 15587 15730 17303 17576 18421 18590 20449 21970 23980 24167 26378 26620 28340 31174 31460 34606 36842 37180 40898 43940 47960 48334 52756 53240 56680 62348 62920 65945 69212 73684 74360 77935 81796 86515 87880 92105 96668 102245 105512 120835 124696 131890 138424 145079 147368 155870 163592 171457 173030 184210 193336 202631 204490 224939 239473 241670 263780 265837 290158 311740 342914 346060 368420 405262 408980 449878 478946 483340 527560 531674 580316 623480 685828 692120 725395 736840 810524 817960 857285 899756 957892 966680 1013155 1063348 1124695 1160632 1197365 1329185 1371656 1450790 1621048 1714570 1799512 1886027 1915784 2026310 2126696 2228941 2249390 2394730 2634203 2658370 2901580 2924207 3429140 3772054 4052620 4457882 4498780 4789460 5268406 5316740 5803160 5848414 6858280 7544108 8105240 8915764 8997560 9430135 9578920 10536812 10633480 11144705 11696828 13171015 14621035 15088216 17831528 18860270 21073624 22289410 23393656 24518351 26342030 28976233 29242070 37720540 44578820 49036702 52684060 57952466 58484140 75441080 89157640 98073404 105368120 115904932 116968280 122591755 144881165 196146808 231809864 245183510 289762330 318738563 490367020 579524660 637477126 980734040 1159049320 1274954252 1593692815 2549908504 3187385630 6374771260 12749542520
• Sum of all divisors σ(n): 34494768000
• Sum of proper divisors (its aliquot sum) s(n): 21745225480
• 12749542520 is an abundant number, because the sum of its proper divisors (21745225480) is greater than itself. Its abundance is 8995682960

Bases of 12749542520

• Binary: 1011110111111011101001010001111000₂
• Hexadecimal: 0x2F7EE9478
• Base-36: 5UUQXYW

Squares and roots of 12749542520

• 12749542520 squared (12749542520²) is 162550834469287950400
• 12749542520 cubed (12749542520³) is 2072448775727668357748451008000
• The square root of 12749542520 is 112913.8721327013
• The cube root of 12749542520 is 2336.1364227069

Scales and comparisons

• 12,749,542,520 seconds is equal to 405 years, 20 weeks, 4 days, 3 hours, 35 minutes, 20 seconds.
• To count from 1 to 12,749,542,520 would take you about eight 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 12749542520 cubic inches would be around 194.7 feet tall.

Recreational maths with 12749542520

• 12749542520 backwards is 02524594721
• The number of decimal digits it has is: 11
• The sum of 12749542520's digits is 41
• More coming soon!