72408364128

Names of 72408364128

• Cardinal: 72408364128 can be written as Seventy-two billion, four hundred eight million, three hundred sixty-four thousand, one hundred twenty-eight.

Scientific notation

• Scientific notation: 7.2408364128 × 10¹⁰

Factors of 72408364128

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 83805982

Divisors of 72408364128

• Number of divisors d(n): 48
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 24 27 32 36 48 54 72 96 108 144 216 288 432 864 83805977 167611954 251417931 335223908 502835862 670447816 754253793 1005671724 1340895632 1508507586 2011343448 2262761379 2681791264 3017015172 4022686896 4525522758 6034030344 8045373792 9051045516 12068060688 18102091032 24136121376 36204182064 72408364128
• Sum of all divisors σ(n): 211191064560
• Sum of proper divisors (its aliquot sum) s(n): 138782700432
• 72408364128 is an abundant number, because the sum of its proper divisors (138782700432) is greater than itself. Its abundance is 66374336304

Bases of 72408364128

• Binary: 1000011011011110111111111010001100000₂
• Hexadecimal: 0x10DBDFF460
• Base-36: X9I2JC0

Squares and roots of 72408364128

• 72408364128 squared (72408364128²) is 5242971195693037200384
• 72408364128 cubed (72408364128³) is 379634967450356982919654373425152
• The square root of 72408364128 is 269088.0230110585
• The cube root of 72408364128 is 4168.0179307687

Scales and comparisons

• 72,408,364,128 seconds is equal to 2,302 years, 18 weeks, 5 days, 18 hours, 28 minutes, 48 seconds.
• To count from 1 to 72,408,364,128 would take you about four thousand, six hundred 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 72408364128 cubic inches would be around 347.3 feet tall.

Recreational maths with 72408364128

• 72408364128 backwards is 82146380427
• The number of decimal digits it has is: 11
• The sum of 72408364128's digits is 45
• More coming soon!