3138681780

Names of 3138681780

• Cardinal: 3138681780 can be written as Three billion, one hundred thirty-eight million, six hundred eighty-one thousand, seven hundred eighty.

Scientific notation

• Scientific notation: 3.13868178 × 10⁹

Factors of 3138681780

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 78941

Divisors of 3138681780

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 3 4 5 6 9 10 12 13 15 17 18 20 26 30 34 36 39 45 51 52 60 65 68 78 85 90 102 117 130 153 156 170 180 195 204 221 234 255 260 306 340 390 442 468 510 585 612 663 765 780 884 1020 1105 1170 1326 1530 1989 2210 2340 2652 3060 3315 3978 4420 6630 7956 9945 13260 19890 39780 78901 157802 236703 315604 394505 473406 710109 789010 946812 1025713 1183515 1341317 1420218 1578020 2051426 2367030 2682634 2840436 3077139 3550545 4023951 4102852 4734060 5128565 5365268 6154278 6706585 7101090 8047902 9231417 10257130 12071853 12308556 13413170 14202180 15385695 16095804 17437121 18462834 20119755 20514260 24143706 26826340 30771390 34874242 36925668 40239510 46157085 48287412 52311363 60359265 61542780 69748484 80479020 87185605 92314170 104622726 120718530 156934089 174371210 184628340 209245452 241437060 261556815 313868178 348742420 523113630 627736356 784670445 1046227260 1569340890 3138681780
• Sum of all divisors σ(n): 10856283984
• Sum of proper divisors (its aliquot sum) s(n): 7717602204
• 3138681780 is an abundant number, because the sum of its proper divisors (7717602204) is greater than itself. Its abundance is 4578920424

Bases of 3138681780

• Binary: 10111011000101000111101110110100₂
• Hexadecimal: 0xBB147BB4
• Base-36: 1FWOUD0

Squares and roots of 3138681780

• 3138681780 squared (3138681780²) is 9851323316103968400
• 3138681780 cubed (3138681780³) is 30920169001144706202775752000
• The square root of 3138681780 is 56023.9393473897
• The cube root of 3138681780 is 1464.1394037727

Scales and comparisons

• 3,138,681,780 seconds is equal to 99 years, 41 weeks, 4 days, 8 hours, 3 minutes.
• To count from 1 to 3,138,681,780 would take you about one 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 3138681780 cubic inches would be around 122 feet tall.

Recreational maths with 3138681780

• 3138681780 backwards is 0871868313
• 3138681780 is a Harshad number.
• The number of decimal digits it has is: 10
• The sum of 3138681780's digits is 45
• More coming soon!