28137838840

Names of 28137838840

• Cardinal: 28137838840 can be written as Twenty-eight billion, one hundred thirty-seven million, eight hundred thirty-eight thousand, eight hundred forty.

Scientific notation

• Scientific notation: 2.813783884 × 10¹⁰

Factors of 28137838840

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 2712

Divisors of 28137838840

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 4 5 8 10 20 40 739 863 1103 1478 1726 2206 2956 3452 3695 4315 4412 5515 5912 6904 7390 8630 8824 11030 14780 17260 22060 29560 34520 44120 637757 815117 951889 1275514 1630234 1903778 2551028 3188785 3260468 3807556 4075585 4759445 5102056 6377570 6520936 7615112 8151170 9518890 12755140 16302340 19037780 25510280 32604680 38075560 703445971 1406891942 2813783884 3517229855 5627567768 7034459710 14068919420 28137838840
• Sum of all divisors σ(n): 63526809600
• Sum of proper divisors (its aliquot sum) s(n): 35388970760
• 28137838840 is an abundant number, because the sum of its proper divisors (35388970760) is greater than itself. Its abundance is 7251131920

Bases of 28137838840

• Binary: 11010001101001001010101100011111000₂
• Hexadecimal: 0x68D2558F8
• Base-36: CXCJJEG

Squares and roots of 28137838840

• 28137838840 squared (28137838840²) is 791737974585812545600
• 28137838840 cubed (28137838840³) is 22277795532403609158542951104000
• The square root of 28137838840 is 167743.3719703999
• The cube root of 28137838840 is 3041.5636735735

Scales and comparisons

• 28,137,838,840 seconds is equal to 894 years, 36 weeks, 1 day, 10 hours, 20 minutes, 40 seconds.
• To count from 1 to 28,137,838,840 would take you about one thousand, seven hundred eighty-nine 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 28137838840 cubic inches would be around 253.5 feet tall.

Recreational maths with 28137838840

• 28137838840 backwards is 04883873182
• The number of decimal digits it has is: 11
• The sum of 28137838840's digits is 52
• More coming soon!