1405879918941421

Names of 1405879918941421

• Cardinal: 1405879918941421 can be written as One quadrillion, four hundred five trillion, eight hundred seventy-nine billion, nine hundred eighteen million, nine hundred forty-one thousand, four hundred twenty-one.

Scientific notation

• Scientific notation: 1.405879918941421 × 10¹⁵

Factors of 1405879918941421

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 235753

Divisors of 1405879918941421

• Number of divisors d(n): 64
• Complete list of divisors:
  1 7 11 43 77 121 301 473 847 1331 3311 5203 9317 15971 36421 57233 111797 175681 219721 400631 686753 1229767 1538047 1932491 2416931 4807271 7554283 9448003 13527437 16918517 21257401 26586241 52879981 66136021 83097113 103928033 148801807 186103687 292448651 581679791 727496231 914068243 1143208363 2047140557 3509164091 6398477701 8002458541 12575291993 24564148637 38600805001 88027043951 150894055913 270205635007 424608855011 1056258391391 1659834615043 2972261985077 4670697405121 11618842305301 18258180765473 32694881835847 127807265358311 200839988420203 1405879918941421
• Sum of all divisors σ(n): 1808491971889152
• Sum of proper divisors (its aliquot sum) s(n): 402612052947731
• 1405879918941421 is a deficient number, because the sum of its proper divisors (402612052947731) is less than itself. Its deficiency is 1003267865993690

Bases of 1405879918941421

• Binary: 100111111101010001111101101001010100101010011101101₂
• Hexadecimal: 0x4FEA3ED2A54ED
• Base-36: DUCCBGZS31

Squares and roots of 1405879918941421

• 1405879918941421 squared (1405879918941421²) is 1976498346482736481453229499241
• 1405879918941421 cubed (1405879918941421³) is 2778719335141002202805199070334298910642961461
• The square root of 1405879918941421 is 37495065.2611969859
• The cube root of 1405879918941421 is 112025.2897541763

Scales and comparisons

• 1,405,879,918,941,421 seconds is equal to 44,702,632 years, 39 weeks, 1 hour, 57 minutes, 1 second.
• To count from 1 to 1,405,879,918,941,421 would take you about one hundred thirty-four million, one hundred seven thousand, eight hundred ninety-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 1405879918941421 cubic inches would be around 9335.4 feet tall.

Recreational maths with 1405879918941421

• 1405879918941421 backwards is 1241498199785041
• The number of decimal digits it has is: 16
• The sum of 1405879918941421's digits is 73
• More coming soon!