128349051840

Names of 128349051840

• Cardinal: 128349051840 can be written as One hundred twenty-eight billion, three hundred forty-nine million, fifty-one thousand, eight hundred forty.

Scientific notation

• Scientific notation: 1.2834905184 × 10¹¹

Factors of 128349051840

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 44565653

Divisors of 128349051840

• Number of divisors d(n): 84
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 30 32 36 40 45 48 60 64 72 80 90 96 120 144 160 180 192 240 288 320 360 480 576 720 960 1440 2880 44565643 89131286 133696929 178262572 222828215 267393858 356525144 401090787 445656430 534787716 668484645 713050288 802181574 891312860 1069575432 1336969290 1426100576 1604363148 1782625720 2005453935 2139150864 2673938580 2852201152 3208726296 3565251440 4010907870 4278301728 5347877160 6417452592 7130502880 8021815740 8556603456 10695754320 12834905184 14261005760 16043631480 21391508640 25669810368 32087262960 42783017280 64174525920 128349051840
• Sum of all divisors σ(n): 441467269464
• Sum of proper divisors (its aliquot sum) s(n): 313118217624
• 128349051840 is an abundant number, because the sum of its proper divisors (313118217624) is greater than itself. Its abundance is 184769165784

Bases of 128349051840

• Binary: 1110111100010001100110001101111000000₂
• Hexadecimal: 0x1DE2331BC0
• Base-36: 1MYNPM80

Squares and roots of 128349051840

• 128349051840 squared (128349051840²) is 16473479108227007385600
• 128349051840 cubed (128349051840³) is 2114355424046985141422437269504000
• The square root of 128349051840 is 358258.3590650747
• The cube root of 128349051840 is 5044.2610601213

Scales and comparisons

• 128,349,051,840 seconds is equal to 4,081 years, 5 weeks, 2 days, 10 hours, 24 minutes.
• To count from 1 to 128,349,051,840 would take you about eight thousand, one hundred sixty-two 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 128349051840 cubic inches would be around 420.4 feet tall.

Recreational maths with 128349051840

• 128349051840 backwards is 048150943821
• 128349051840 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 128349051840's digits is 45
• More coming soon!