1638728929801089

Names of 1638728929801089

• Cardinal: 1638728929801089 can be written as One quadrillion, six hundred thirty-eight trillion, seven hundred twenty-eight billion, nine hundred twenty-nine million, eight hundred one thousand and eighty-nine.

Scientific notation

• Scientific notation: 1.638728929801089 × 10¹⁵

Factors of 1638728929801089

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 2354

Divisors of 1638728929801089

• Number of divisors d(n): 135
• Complete list of divisors:
  1 3 7 9 21 27 49 63 81 147 189 317 441 567 951 1323 2027 2219 2853 3969 6081 6657 8559 14189 15533 18243 19971 25677 42567 46599 54729 59913 99323 100489 127701 139797 164187 179739 297969 301467 383103 419391 642559 703423 893907 904401 1149309 1258173 1927677 2110269 2681721 2713203 4108729 4497913 4923961 5783031 6330807 8045163 8139609 12326187 13493739 14771883 17349093 18992421 28761103 31485391 36978561 40481217 44315649 52047279 56977263 86283309 94456173 110935683 121443651 132946947 201327721 203691203 258849927 283368519 332807049 364330953 398840841 603983163 611073609 776549781 850105557 1302467093 1425838421 1811949489 1833220827 2329649343 2550316671 3907401279 4277515263 5435848467 5499662481 9117269651 9980868947 11722203837 12832545789 16307545401 16498987443 27351808953 29942606841 35166611511 38497637367 63820887557 82055426859 89827820523 105499834533 115492912101 191462662671 246166280577 269483461569 412882068481 574387988013 738498841731 808450384707 1238646205443 1723163964039 2890174479367 3715938616329 5169491892117 8670523438101 11147815848987 20231221355569 26011570314303 33443447546961 60693664066707 78034710942909 182080992200121 234104132828727 546242976600363 1638728929801089
• Sum of all divisors σ(n): 2858069078960403
• Sum of proper divisors (its aliquot sum) s(n): 1219340149159314
• 1638728929801089 is a deficient number, because the sum of its proper divisors (1219340149159314) is less than itself. Its deficiency is 419388780641775

Bases of 1638728929801089

• Binary: 101110100100110101001001111101111100111001110000001₂
• Hexadecimal: 0x5D26A4FBE7381
• Base-36: G4VPOE2R29

Squares and roots of 1638728929801089

• 1638728929801089 squared (1638728929801089²) is 2685432505367022479649105585921
• 1638728929801089 cubed (1638728929801089³) is 4400695935573157940286265763823860153328867969
• 1638728929801089 is a perfect square number. Its square root is 40481217
• The cube root of 1638728929801089 is 117896.8966717471

Scales and comparisons

• 1,638,728,929,801,089 seconds is equal to 52,106,511 years, 2 weeks, 2 days, 20 hours, 18 minutes, 9 seconds.
• To count from 1 to 1,638,728,929,801,089 would take you about one hundred fifty-six million, three hundred nineteen thousand, five hundred thirty-three 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 1638728929801089 cubic inches would be around 9824.7 feet tall.

Recreational maths with 1638728929801089

• 1638728929801089 backwards is 9801089298278361
• 1638728929801089 is a Harshad number.
• The number of decimal digits it has is: 16
• The sum of 1638728929801089's digits is 81
• More coming soon!