642885012

Names of 642885012

• Cardinal: 642885012 can be written as Six hundred forty-two million, eight hundred eighty-five thousand and twelve.

Scientific notation

• Scientific notation: 6.42885012 × 10⁸

Factors of 642885012

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 449

Divisors of 642885012

• Number of divisors d(n): 240
• Complete list of divisors:
  1 2 3 4 6 7 9 11 12 14 18 21 22 27 28 33 36 42 44 54 63 66 73 77 81 84 99 108 126 132 146 154 162 189 198 219 231 252 292 297 308 324 353 378 396 438 462 511 567 594 657 693 706 756 803 876 891 924 1022 1059 1134 1188 1314 1386 1412 1533 1606 1782 1971 2044 2079 2118 2268 2409 2471 2628 2772 3066 3177 3212 3564 3883 3942 4158 4236 4599 4818 4942 5621 5913 6132 6237 6354 7227 7413 7766 7884 8316 9198 9531 9636 9884 11242 11649 11826 12474 12708 13797 14454 14826 15532 16863 18396 19062 21681 22239 22484 23298 23652 24948 25769 27181 27594 28593 28908 29652 33726 34947 38124 41391 43362 44478 46596 50589 51538 54362 55188 57186 65043 66717 67452 69894 77307 81543 82782 86724 88956 101178 103076 104841 108724 114372 130086 133434 139788 151767 154614 163086 165564 180383 200151 202356 209682 231921 244629 260172 266868 283459 303534 309228 314523 326172 360766 400302 419364 455301 463842 489258 541149 566918 607068 629046 695763 721532 733887 800604 850377 910602 927684 978516 1082298 1133836 1258092 1391526 1467774 1623447 1700754 1821204 1984213 2087289 2164596 2201661 2551131 2783052 2935548 3246894 3401508 3968426 4174578 4403322 4870341 5102262 5952639 6493788 7653393 7936852 8349156 8806644 9740682 10204524 11905278 14611023 15306786 17857917 19481364 22960179 23810556 29222046 30613572 35715834 45920358 53573751 58444092 71431668 91840716 107147502 160721253 214295004 321442506 642885012
• Sum of all divisors σ(n): 2130049152
• Sum of proper divisors (its aliquot sum) s(n): 1487164140
• 642885012 is an abundant number, because the sum of its proper divisors (1487164140) is greater than itself. Its abundance is 844279128

Bases of 642885012

• Binary: 100110010100011010010110010100₂
• Hexadecimal: 0x2651A594
• Base-36: AMR990

Squares and roots of 642885012

• 642885012 squared (642885012²) is 413301138654240144
• 642885012 cubed (642885012³) is 265705107483344838826321728
• The square root of 642885012 is 25355.1772228079
• The cube root of 642885012 is 863.0668455281

Scales and comparisons

• 642,885,012 seconds is equal to 20 years, 22 weeks, 6 days, 19 hours, 10 minutes, 12 seconds.
• To count from 1 to 642,885,012 would take you about thirty 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 642885012 cubic inches would be around 71.9 feet tall.

Recreational maths with 642885012

• 642885012 backwards is 210588246
• 642885012 is a Harshad number.
• The number of decimal digits it has is: 9
• The sum of 642885012's digits is 36
• More coming soon!