42909121728

Names of 42909121728

• Cardinal: 42909121728 can be written as Forty-two billion, nine hundred nine million, one hundred twenty-one thousand, seven hundred twenty-eight.

Scientific notation

• Scientific notation: 4.2909121728 × 10¹⁰

Factors of 42909121728

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 398402

Divisors of 42909121728

• Number of divisors d(n): 168
• Complete list of divisors:
  1 2 3 4 6 8 9 11 12 16 17 18 22 24 32 33 34 36 44 48 51 64 66 68 72 88 96 99 102 132 136 144 153 176 187 192 198 204 264 272 288 306 352 374 396 408 528 544 561 576 612 704 748 792 816 1056 1088 1122 1224 1496 1584 1632 1683 2112 2244 2448 2992 3168 3264 3366 4488 4896 5984 6336 6732 8976 9792 11968 13464 17952 26928 35904 53856 107712 398369 796738 1195107 1593476 2390214 3186952 3585321 4382059 4780428 6373904 6772273 7170642 8764118 9560856 12747808 13146177 13544546 14341284 17528236 19121712 20316819 25495616 26292354 27089092 28682568 35056472 38243424 39438531 40633638 52584708 54178184 57365136 60950457 70112944 74495003 76486848 78877062 81267276 105169416 108356368 114730272 121900914 140225888 148990006 157754124 162534552 210338832 216712736 223485009 229460544 243801828 280451776 297980012 315508248 325069104 420677664 433425472 446970018 487603656 595960024 631016496 650138208 670455027 841355328 893940036 975207312 1191920048 1262032992 1300276416 1340910054 1787880072 1950414624 2383840096 2524065984 2681820108 3575760144 3900829248 4767680192 5363640216 7151520288 10727280432 14303040576 21454560864 42909121728
• Sum of all divisors σ(n): 142065115920
• Sum of proper divisors (its aliquot sum) s(n): 99155994192
• 42909121728 is an abundant number, because the sum of its proper divisors (99155994192) is greater than itself. Its abundance is 56246872464

Bases of 42909121728

• Binary: 100111111101100101010011110011000000₂
• Hexadecimal: 0x9FD953CC0
• Base-36: JPMZE80

Squares and roots of 42909121728

• 42909121728 squared (42909121728²) is 1841192727468321705984
• 42909121728 cubed (42909121728³) is 79003962867646545345932082020352
• The square root of 42909121728 is 207145.1706605783
• The cube root of 42909121728 is 3500.9282361949

Scales and comparisons

• 42,909,121,728 seconds is equal to 1,364 years, 19 weeks, 4 days, 8 hours, 28 minutes, 48 seconds.
• To count from 1 to 42,909,121,728 would take you about two thousand, seven hundred twenty-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 42909121728 cubic inches would be around 291.7 feet tall.

Recreational maths with 42909121728

• 42909121728 backwards is 82712190924
• The number of decimal digits it has is: 11
• The sum of 42909121728's digits is 45
• More coming soon!