28289427738

Names of 28289427738

• Cardinal: 28289427738 can be written as Twenty-eight billion, two hundred eighty-nine million, four hundred twenty-seven thousand, seven hundred thirty-eight.

Scientific notation

• Scientific notation: 2.8289427738 × 10¹⁰

Factors of 28289427738

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 1452

Divisors of 28289427738

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 3 6 11 13 22 26 33 39 66 78 79 143 158 237 286 429 474 487 857 858 869 974 1027 1461 1714 1738 2054 2571 2607 2922 3081 5142 5214 5357 6162 6331 9427 10714 11141 11297 12662 16071 18854 18993 22282 22594 28281 32142 33423 33891 37986 38473 56562 66846 67703 67782 69641 76946 115419 122551 135406 139282 203109 208923 230838 245102 367653 406218 417359 417846 423203 500149 735306 744733 834718 846406 880139 1000298 1252077 1269609 1489466 1500447 1760278 2234199 2504154 2539218 2640417 3000894 4468398 4590949 5280834 5425667 5501639 9181898 9681529 10851334 11003278 13772847 16277001 16504917 19363058 27545694 29044587 32554002 32971361 33009834 58089174 59682337 65942722 98914083 119364674 179047011 197828166 358094022 362684971 428627693 725369942 857255386 1088054913 1285883079 2176109826 2571766158 4714904623 9429809246 14144713869 28289427738
• Sum of all divisors σ(n): 67528581120
• Sum of proper divisors (its aliquot sum) s(n): 39239153382
• 28289427738 is an abundant number, because the sum of its proper divisors (39239153382) is greater than itself. Its abundance is 10949725644

Bases of 28289427738

• Binary: 11010010110001011100110100100011010₂
• Hexadecimal: 0x6962E691A
• Base-36: CZUSM56

Squares and roots of 28289427738

• 28289427738 squared (28289427738²) is 800291721743523796644
• 28289427738 cubed (28289427738³) is 22639794831583019814643844911272
• The square root of 28289427738 is 168194.6126901811
• The cube root of 28289427738 is 3047.0159020077

Scales and comparisons

• 28,289,427,738 seconds is equal to 899 years, 26 weeks, 5 days, 22 hours, 22 minutes, 18 seconds.
• To count from 1 to 28,289,427,738 would take you about one thousand, seven hundred ninety-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 28289427738 cubic inches would be around 253.9 feet tall.

Recreational maths with 28289427738

• 28289427738 backwards is 83772498282
• The number of decimal digits it has is: 11
• The sum of 28289427738's digits is 60
• More coming soon!