2155368436420

Names of 2155368436420

• Cardinal: 2155368436420 can be written as Two trillion, one hundred fifty-five billion, three hundred sixty-eight million, four hundred thirty-six thousand, four hundred twenty.

Scientific notation

• Scientific notation: 2.15536843642 × 10¹²

Factors of 2155368436420

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 19778

Divisors of 2155368436420

• Number of divisors d(n): 48
• Complete list of divisors:
  1 2 4 5 10 20 1277 2554 5108 6385 8191 10303 12770 16382 20606 25540 32764 40955 41212 51515 81910 103030 163820 206060 10459907 13156931 20919814 26313862 41839628 52299535 52627724 65784655 84391873 104599070 131569310 168783746 209198140 263138620 337567492 421959365 843918730 1687837460 107768421821 215536843642 431073687284 538842109105 1077684218210 2155368436420
• Sum of all divisors σ(n): 4530810912768
• Sum of proper divisors (its aliquot sum) s(n): 2375442476348
• 2155368436420 is an abundant number, because the sum of its proper divisors (2375442476348) is greater than itself. Its abundance is 220074039928

Bases of 2155368436420

• Binary: 11111010111010101111110000101001011000100₂
• Hexadecimal: 0x1F5D5F852C4
• Base-36: RI5UPTC4

Squares and roots of 2155368436420

• 2155368436420 squared (2155368436420²) is 4645613096715595582416400
• 2155368436420 cubed (2155368436420³) is 10013007836480167487901895313365288000
• The square root of 2155368436420 is 1468117.3101697289
• The cube root of 2155368436420 is 12917.3622681625

Scales and comparisons

• 2,155,368,436,420 seconds is equal to 68,534 years, 2 weeks, 3 days, 22 hours, 33 minutes, 40 seconds.
• To count from 1 to 2,155,368,436,420 would take you about one hundred seventy-one thousand, three hundred thirty-five 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 2155368436420 cubic inches would be around 1076.4 feet tall.

Recreational maths with 2155368436420

• 2155368436420 backwards is 0246348635512
• The number of decimal digits it has is: 13
• The sum of 2155368436420's digits is 49
• More coming soon!