121209691978815

Names of 121209691978815

• Cardinal: 121209691978815 can be written as One hundred twenty-one trillion, two hundred nine billion, six hundred ninety-one million, nine hundred seventy-eight thousand, eight hundred fifteen.

Scientific notation

• Scientific notation: 1.21209691978815 × 10¹⁴

Factors of 121209691978815

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 579761

Divisors of 121209691978815

• Number of divisors d(n): 128
• Complete list of divisors:
  1 3 5 11 15 33 53 55 71 159 165 213 265 337 355 583 781 795 1011 1065 1685 1749 2343 2915 3707 3763 3905 5055 8745 11121 11289 11715 17861 18535 18815 23927 41393 53583 55605 56445 71781 89305 119635 124179 196471 206965 263197 267915 358905 579281 589413 620895 789591 982355 1268131 1315985 1737843 2896405 2947065 3804393 3947955 6340655 6372091 8689215 13949441 19021965 19116273 30701893 31860455 41128951 41848323 69747205 92105679 95581365 123386853 153509465 195217697 205644755 209241615 337720823 452418461 460528395 585653091 616934265 976088485 1013162469 1357255383 1688604115 2147394667 2179834403 2262092305 2928265455 5065812345 6442184001 6539503209 6786276915 10346537941 10736973335 10899172015 13860456487 23978178433 31039613823 32210920005 32697516045 41581369461 51732689705 69302282435 71934535299 113811917351 119890892165 152465021357 155198069115 207906847305 341435752053 359672676495 457395064071 569059586755 734604193811 762325106785 1707178760265 2203812581433 2286975320355 3673020969055 8080646131921 11019062907165 24241938395763 40403230659605 121209691978815
• Sum of all divisors σ(n): 219242869807104
• Sum of proper divisors (its aliquot sum) s(n): 98033177828289
• 121209691978815 is a deficient number, because the sum of its proper divisors (98033177828289) is less than itself. Its deficiency is 23176514150526

Bases of 121209691978815

• Binary: 11011100011110101010100101000100011110000111111₂
• Hexadecimal: 0x6E3D54A23C3F
• Base-36: 16YQYP298F

Squares and roots of 121209691978815

• 121209691978815 squared (121209691978815²) is 14691789429599209350408804225
• 121209691978815 cubed (121209691978815³) is 1780787271379330289740511984112138182493375
• The square root of 121209691978815 is 11009527.3276746537
• The cube root of 121209691978815 is 49489.4297028079

Scales and comparisons

• 121,209,691,978,815 seconds is equal to 3,854,093 years, 14 weeks, 3 days, 11 hours, 15 seconds.
• To count from 1 to 121,209,691,978,815 would take you about nine million, six hundred thirty-five thousand, two 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 121209691978815 cubic inches would be around 4124.1 feet tall.

Recreational maths with 121209691978815

• 121209691978815 backwards is 518879196902121
• The number of decimal digits it has is: 15
• The sum of 121209691978815's digits is 69
• More coming soon!