155005909120

Names of 155005909120

• Cardinal: 155005909120 can be written as One hundred fifty-five billion, five million, nine hundred nine thousand, one hundred twenty.

Scientific notation

• Scientific notation: 1.5500590912 × 10¹¹

Factors of 155005909120

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 649701

Divisors of 155005909120

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 4 5 8 10 16 20 32 40 64 80 128 160 320 373 640 746 1492 1865 2984 3730 5968 7460 11936 14920 23872 29840 47744 59680 119360 238720 649321 1298642 2597284 3246605 5194568 6493210 10389136 12986420 20778272 25972840 41556544 51945680 83113088 103891360 207782720 242196733 415565440 484393466 968786932 1210983665 1937573864 2421967330 3875147728 4843934660 7750295456 9687869320 15500590912 19375738640 31001181824 38751477280 77502954560 155005909120
• Sum of all divisors σ(n): 371555034840
• Sum of proper divisors (its aliquot sum) s(n): 216549125720
• 155005909120 is an abundant number, because the sum of its proper divisors (216549125720) is greater than itself. Its abundance is 61543216600

Bases of 155005909120

• Binary: 10010000010111000100100111100010000000₂
• Hexadecimal: 0x2417127880
• Base-36: 1Z7IIKXS

Squares and roots of 155005909120

• 155005909120 squared (155005909120²) is 24026831862117699174400
• 155005909120 cubed (155005909120³) is 3724300916060936448970545430528000
• The square root of 155005909120 is 393707.8982189715
• The cube root of 155005909120 is 5371.7536162997

Scales and comparisons

• 155,005,909,120 seconds is equal to 4,928 years, 36 weeks, 5 days, 20 hours, 58 minutes, 40 seconds.
• To count from 1 to 155,005,909,120 would take you about nine thousand, eight hundred fifty-seven 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 155005909120 cubic inches would be around 447.6 feet tall.

Recreational maths with 155005909120

• 155005909120 backwards is 021909500551
• The number of decimal digits it has is: 12
• The sum of 155005909120's digits is 37
• More coming soon!