689731349629143940

Names of 689731349629143940

• Cardinal: 689731349629143940 can be written as Six hundred eighty-nine quadrillion, seven hundred thirty-one trillion, three hundred forty-nine billion, six hundred twenty-nine million, one hundred forty-three thousand, nine hundred forty.

Scientific notation

• Scientific notation: 6.8973134962914394 × 10¹⁷

Factors of 689731349629143940

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 166285250

Divisors of 689731349629143940

• Number of divisors d(n): 48
• Complete list of divisors:
  1 2 4 5 10 19 20 38 76 95 190 380 11745053 23490106 46980212 58725265 117450530 154540171 223156007 234901060 309080342 446312014 618160684 772700855 892624028 1115780035 1545401710 2231560070 2936263249 3090803420 4463120140 5872526498 11745052996 14681316245 29362632490 58725264980 1815082499024063 3630164998048126 7260329996096252 9075412495120315 18150824990240630 34486567481457197 36301649980481260 68973134962914394 137946269925828788 172432837407285985 344865674814571970 689731349629143940
• Sum of all divisors σ(n): 1524669438859801920
• Sum of proper divisors (its aliquot sum) s(n): 834938089230657980
• 689731349629143940 is an abundant number, because the sum of its proper divisors (834938089230657980) is greater than itself. Its abundance is 145206739601514040

Bases of 689731349629143940

• Binary: 100110010010011010110000001000010101000110001000101110000100₂
• Hexadecimal: 0x9926B0215188B84
• Base-36: 58NDCVQPH6DG

Squares and roots of 689731349629143940

• 689731349629143940 squared (689731349629143940²) is 475729334661240398298572217238723600
• 689731349629143940 cubed (689731349629143940³) is 328125436054072025914122869642718904794242886274984000
• The square root of 689731349629143940 is 830500662.0281189997
• The cube root of 689731349629143940 is 883540.8940669613

Scales and comparisons

• 689,731,349,629,143,940 seconds is equal to 21,931,323,439 years, 3 weeks, 1 day, 19 hours, 5 minutes, 40 seconds.
• To count from 1 to 689,731,349,629,143,940 would take you about sixty-five billion, seven hundred ninety-three million, nine hundred seventy thousand, three hundred seventeen 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 689731349629143940 cubic inches would be around 73628.4 feet tall.

Recreational maths with 689731349629143940

• 689731349629143940 backwards is 049341926943137986
• The number of decimal digits it has is: 18
• The sum of 689731349629143940's digits is 88
• More coming soon!