18931129164

Names of 18931129164

• Cardinal: 18931129164 can be written as Eighteen billion, nine hundred thirty-one million, one hundred twenty-nine thousand, one hundred sixty-four.

Scientific notation

• Scientific notation: 1.8931129164 × 10¹⁰

Factors of 18931129164

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 990393

Divisors of 18931129164

• Number of divisors d(n): 60
• Complete list of divisors:
  1 2 3 4 6 9 12 18 27 36 54 59 81 108 118 162 177 236 324 354 531 708 1062 1593 2124 3186 4779 6372 9558 19116 990329 1980658 2970987 3961316 5941974 8912961 11883948 17825922 26738883 35651844 53477766 58429411 80216649 106955532 116858822 160433298 175288233 233717644 320866596 350576466 525864699 701152932 1051729398 1577594097 2103458796 3155188194 4732782291 6310376388 9465564582 18931129164
• Sum of all divisors σ(n): 50328570600
• Sum of proper divisors (its aliquot sum) s(n): 31397441436
• 18931129164 is an abundant number, because the sum of its proper divisors (31397441436) is greater than itself. Its abundance is 12466312272

Bases of 18931129164

• Binary: 10001101000011000100001101101001100₂
• Hexadecimal: 0x468621B4C
• Base-36: 8P33SR0

Squares and roots of 18931129164

• 18931129164 squared (18931129164²) is 358387651424051338896
• 18931129164 cubed (18931129164³) is 6784682919891324432807313162944
• The square root of 18931129164 is 137590.4399440601
• The cube root of 18931129164 is 2665.1736215523

Scales and comparisons

• 18,931,129,164 seconds is equal to 601 years, 49 weeks, 3 days, 6 hours, 59 minutes, 24 seconds.
• To count from 1 to 18,931,129,164 would take you about one thousand, two hundred 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 18931129164 cubic inches would be around 222.1 feet tall.

Recreational maths with 18931129164

• 18931129164 backwards is 46192113981
• The number of decimal digits it has is: 11
• The sum of 18931129164's digits is 45
• More coming soon!