138131951384

Names of 138131951384

• Cardinal: 138131951384 can be written as One hundred thirty-eight billion, one hundred thirty-one million, nine hundred fifty-one thousand, three hundred eighty-four.

Scientific notation

• Scientific notation: 1.38131951384 × 10¹¹

Factors of 138131951384

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 6317

Divisors of 138131951384

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 4 7 8 14 28 49 56 98 196 241 392 482 964 1687 1928 3374 6067 6748 11809 12134 13496 23618 24268 42469 47236 48536 58081 84938 94472 116162 169876 232324 297283 339752 406567 464648 594566 813134 1189132 1462147 1626268 2378264 2845969 2924294 3252536 5691938 5848588 10235029 11383876 11697176 20470058 22767752 40940116 71645203 81880232 143290406 286580812 352377427 573161624 704754854 1409509708 2466641989 2819019416 4933283978 9866567956 17266493923 19733135912 34532987846 69065975692 138131951384
• Sum of all divisors σ(n): 302587889220
• Sum of proper divisors (its aliquot sum) s(n): 164455937836
• 138131951384 is an abundant number, because the sum of its proper divisors (164455937836) is greater than itself. Its abundance is 26323986452

Bases of 138131951384

• Binary: 10000000101001010011100100111100011000₂
• Hexadecimal: 0x20294E4F18
• Base-36: 1RGG73TK

Squares and roots of 138131951384

• 138131951384 squared (138131951384²) is 19080435993151739515456
• 138131951384 cubed (138131951384³) is 2635617856991559839683999908591104
• The square root of 138131951384 is 371661.0705790963
• The cube root of 138131951384 is 5169.2957771361

Scales and comparisons

• 138,131,951,384 seconds is equal to 4,392 years, 8 weeks, 5 days, 10 hours, 29 minutes, 44 seconds.
• To count from 1 to 138,131,951,384 would take you about eight thousand, seven hundred eighty-four 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 138131951384 cubic inches would be around 430.8 feet tall.

Recreational maths with 138131951384

• 138131951384 backwards is 483159131831
• The number of decimal digits it has is: 12
• The sum of 138131951384's digits is 47
• More coming soon!