1989438556707474739

Names of 1989438556707474739

• Cardinal: 1989438556707474739 can be written as One quintillion, nine hundred eighty-nine quadrillion, four hundred thirty-eight trillion, five hundred fifty-six billion, seven hundred seven million, four hundred seventy-four thousand, seven hundred thirty-nine.

Scientific notation

• Scientific notation: 1.989438556707474739 × 10¹⁸

Factors of 1989438556707474739

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 37143328

Divisors of 1989438556707474739

• Number of divisors d(n): 64
• Complete list of divisors:
  1 17 41 71 601 697 1207 1801 2911 10217 24641 30617 42671 49487 73841 127871 418897 725407 1082401 1255297 1749511 2173807 5242711 18400817 29741687 37140797 44378441 76850471 89126087 631393549 754433497 1306458007 1522772677 2636996587 3150869311 22321618997 25887135509 44828941979 53564778287 66890575397 108116860067 379467522949 915186378877 1137139781749 1584834948787 1837986621139 2742513591277 4749230853187 15558168440909 26942194129379 40201235813597 46622731051709 64978232900267 80736924504179 194718464980667 683421008831149 1104629959304539 1648250668357477 2854287742765387 3310213904671339 28020261362077109 48522891627011579 117025797453380867 1989438556707474739
• Sum of all divisors σ(n): 2193091746666879744
• Sum of proper divisors (its aliquot sum) s(n): 203653189959405005
• 1989438556707474739 is a deficient number, because the sum of its proper divisors (203653189959405005) is less than itself. Its deficiency is 1785785366748069734

Bases of 1989438556707474739

• Binary: 1101110011011111001111101001110101011000000111100110100110011₂
• Hexadecimal: 0x1B9BE7D3AB03CD33
• Base-36: F44T3ZXE9PV7

Squares and roots of 1989438556707474739

• 1989438556707474739 squared (1989438556707474739²) is 3957865770914320182825794274323118121
• 1989438556707474739 cubed (1989438556707474739³) is 7873930766929701997517246623369563078754115670320645419
• The square root of 1989438556707474739 is 1410474585.6297711893
• The cube root of 1989438556707474739 is 1257699.3704831045

Scales and comparisons

• 1,989,438,556,707,474,739 seconds is equal to 63,257,992,365 years, 41 weeks, 4 days, 7 hours, 52 minutes, 19 seconds.
• To count from 1 to 1,989,438,556,707,474,739 would take you about two hundred twenty-one billion, four hundred two million, nine hundred seventy-three thousand, two hundred eighty 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 1989438556707474739 cubic inches would be around 104808.3 feet tall.

Recreational maths with 1989438556707474739

• 1989438556707474739 backwards is 9374747076558349891
• The number of decimal digits it has is: 19
• The sum of 1989438556707474739's digits is 106
• More coming soon!