6420947280

Names of 6420947280

• Cardinal: 6420947280 can be written as Six billion, four hundred twenty million, nine hundred forty-seven thousand, two hundred eighty.

Scientific notation

• Scientific notation: 6.42094728 × 10⁹

Factors of 6420947280

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 1889

Divisors of 6420947280

• Number of divisors d(n): 240
• Complete list of divisors:
  1 2 3 4 5 6 8 10 11 12 15 16 20 22 24 30 33 40 44 48 55 60 66 80 88 110 120 121 127 132 165 176 220 240 242 254 264 330 363 381 440 484 508 528 605 635 660 726 762 880 968 1016 1210 1270 1320 1397 1452 1524 1741 1815 1905 1936 2032 2420 2540 2640 2794 2904 3048 3482 3630 3810 4191 4840 5080 5223 5588 5808 6096 6964 6985 7260 7620 8382 8705 9680 10160 10446 11176 13928 13970 14520 15240 15367 16764 17410 19151 20892 20955 22352 26115 27856 27940 29040 30480 30734 33528 34820 38302 41784 41910 46101 52230 55880 57453 61468 67056 69640 76604 76835 83568 83820 92202 95755 104460 111760 114906 122936 139280 153208 153670 167640 184404 191510 208920 210661 221107 229812 230505 245872 287265 306416 307340 335280 368808 383020 417840 421322 442214 459624 461010 574530 614680 631983 663321 737616 766040 842644 884428 919248 922020 1053305 1105535 1149060 1229360 1263966 1326642 1532080 1685288 1768856 1844040 2106610 2211070 2298120 2432177 2527932 2653284 3159915 3316605 3370576 3537712 3688080 4213220 4422140 4596240 4864354 5055864 5306568 6319830 6633210 7296531 8426440 8844280 9728708 10111728 10613136 12160885 12639660 13266420 14593062 16852880 17688560 19457416 24321770 25279320 26532840 26753947 29186124 36482655 38914832 48643540 50558640 53065680 53507894 58372248 72965310 80261841 97287080 107015788 116744496 133769735 145930620 160523682 194574160 214031576 267539470 291861240 321047364 401309205 428063152 535078940 583722480 642094728 802618410 1070157880 1284189456 1605236820 2140315760 3210473640 6420947280
• Sum of all divisors σ(n): 22063921152
• Sum of proper divisors (its aliquot sum) s(n): 15642973872
• 6420947280 is an abundant number, because the sum of its proper divisors (15642973872) is greater than itself. Its abundance is 9222026592

Bases of 6420947280

• Binary: 101111110101101111110000101010000₂
• Hexadecimal: 0x17EB7E150
• Base-36: 2Y6V6MO

Squares and roots of 6420947280

• 6420947280 squared (6420947280²) is 41228563972539398400
• 6420947280 cubed (6420947280³) is 264726435697782844849316352000
• The square root of 6420947280 is 80130.8135488465
• The cube root of 6420947280 is 1858.6589246229

Scales and comparisons

• 6,420,947,280 seconds is equal to 204 years, 8 weeks, 4 days, 12 hours, 28 minutes.
• To count from 1 to 6,420,947,280 would take you about four hundred eight 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 6420947280 cubic inches would be around 154.9 feet tall.

Recreational maths with 6420947280

• 6420947280 backwards is 0827490246
• The number of decimal digits it has is: 10
• The sum of 6420947280's digits is 42
• More coming soon!