12840781590

Names of 12840781590

• Cardinal: 12840781590 can be written as Twelve billion, eight hundred forty million, seven hundred eighty-one thousand, five hundred ninety.

Scientific notation

• Scientific notation: 1.284078159 × 10¹⁰

Factors of 12840781590

• Number of distinct prime factors ω(n): 8
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 689

Divisors of 12840781590

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 3 5 6 7 9 10 13 14 15 18 19 21 26 30 35 38 39 42 45 57 63 65 70 78 90 91 95 105 114 117 126 130 133 171 179 182 190 195 210 234 247 266 273 285 315 342 358 390 399 455 461 494 537 546 570 585 630 665 741 798 819 855 895 910 922 1074 1170 1197 1235 1253 1330 1365 1383 1482 1611 1638 1710 1729 1790 1995 2223 2305 2327 2394 2470 2506 2685 2730 2766 3222 3227 3401 3458 3705 3759 3990 4095 4149 4446 4610 4654 5187 5370 5985 5993 6265 6454 6802 6915 6981 7410 7518 8055 8190 8298 8645 8759 9681 10203 10374 11115 11277 11635 11970 11986 12530 13830 13962 15561 16110 16135 16289 17005 17290 17518 17979 18795 19362 20406 20745 20943 22230 22554 23270 23807 25935 26277 29043 29965 30609 31122 32270 32578 34010 34905 35958 37590 41490 41886 41951 43795 44213 47614 48405 48867 51015 51870 52554 53937 56385 58086 59930 61218 61313 69810 71421 77805 78831 81445 82519 83902 87590 88426 89895 96810 97734 102030 104715 107874 112770 113867 119035 122626 125853 131385 132639 142842 145215 146601 153045 155610 157662 162890 165038 179790 183939 209430 209755 214263 221065 227734 238070 244335 247557 251706 262770 265278 269685 290430 293202 306090 306565 309491 341601 357105 367878 377559 394155 397917 412595 419510 428526 442130 488670 495114 539370 551817 569335 577633 613130 618982 629265 663195 683202 714210 733005 742671 755118 788310 795834 797069 825190 919695 928473 1024803 1071315 1072747 1103634 1138670 1155266 1237785 1258530 1326390 1466010 1485342 1547455 1567861 1594138 1708005 1732899 1839390 1856946 1887795 1989585 2049606 2142630 2145494 2391207 2475570 2759085 2785419 2888165 3094910 3135722 3218241 3416010 3465798 3713355 3775590 3979170 3985345 4642365 4703583 4782414 5124015 5198697 5363735 5518170 5570838 5776330 6436482 7173621 7426710 7509229 7839305 7970690 8664495 9284730 9407166 9654723 10248030 10397394 10727470 10975027 11956035 13927095 14110749 14347242 15018458 15678610 16091205 17328990 19309446 20382193 21950054 22527687 23517915 23912070 25993485 27854190 28221498 32182410 32925081 35868105 37546145 40764386 45055374 47035830 48273615 51986970 54875135 61146579 65850162 67583061 70553745 71736210 75092290 96547230 98775243 101910965 109750270 112638435 122293158 135166122 141107490 142675351 164625405 183439737 197550486 203821930 225276870 285350702 305732895 329250810 337915305 366879474 428026053 493876215 611465790 675830610 713376755 856052106 917198685 987752430 1284078159 1426753510 1834397370 2140130265 2568156318 4280260530 6420390795 12840781590
• Sum of all divisors σ(n): 43589145600
• Sum of proper divisors (its aliquot sum) s(n): 30748364010
• 12840781590 is an abundant number, because the sum of its proper divisors (30748364010) is greater than itself. Its abundance is 17907582420

Bases of 12840781590

• Binary: 1011111101010111101100011100010110₂
• Hexadecimal: 0x2FD5EC716
• Base-36: 5WD2IHI

Squares and roots of 12840781590

• 12840781590 squared (12840781590²) is 164885671842082928100
• 12840781590 cubed (12840781590³) is 2117260899444599850399773679000
• The square root of 12840781590 is 113317.1725291449
• The cube root of 12840781590 is 2341.6958504541

Scales and comparisons

• 12,840,781,590 seconds is equal to 408 years, 15 weeks, 3 days, 3 hours, 46 minutes, 30 seconds.
• To count from 1 to 12,840,781,590 would take you about eight hundred sixteen 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 12840781590 cubic inches would be around 195.1 feet tall.

Recreational maths with 12840781590

• 12840781590 backwards is 09518704821
• 12840781590 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 12840781590's digits is 45
• More coming soon!