131399440

Names of 131399440

• Cardinal: 131399440 can be written as One hundred thirty-one million, three hundred ninety-nine thousand, four hundred forty.

Scientific notation

• Scientific notation: 1.3139944 × 10⁸

Factors of 131399440

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 794

Divisors of 131399440

• Number of divisors d(n): 80
• Complete list of divisors:
  1 2 4 5 8 10 16 19 20 38 40 76 80 95 137 152 190 274 304 380 548 631 685 760 1096 1262 1370 1520 2192 2524 2603 2740 3155 5048 5206 5480 6310 10096 10412 10960 11989 12620 13015 20824 23978 25240 26030 41648 47956 50480 52060 59945 86447 95912 104120 119890 172894 191824 208240 239780 345788 432235 479560 691576 864470 959120 1383152 1642493 1728940 3284986 3457880 6569972 6915760 8212465 13139944 16424930 26279888 32849860 65699720 131399440
• Sum of all divisors σ(n): 324443520
• Sum of proper divisors (its aliquot sum) s(n): 193044080
• 131399440 is an abundant number, because the sum of its proper divisors (193044080) is greater than itself. Its abundance is 61644640

Bases of 131399440

• Binary: 111110101001111111100010000₂
• Hexadecimal: 0x7D4FF10
• Base-36: 268CGG

Squares and roots of 131399440

• 131399440 squared (131399440²) is 17265812832313600
• 131399440 cubed (131399440³) is 2268718137310820944384000
• The square root of 131399440 is 11462.9594782499
• The cube root of 131399440 is 508.3909817865

Scales and comparisons

• 131,399,440 seconds is equal to 4 years, 9 weeks, 1 day, 19 hours, 50 minutes, 40 seconds.
• To count from 1 to 131,399,440 would take you about six 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 131399440 cubic inches would be around 42.4 feet tall.

Recreational maths with 131399440

• 131399440 backwards is 044993131
• The number of decimal digits it has is: 9
• The sum of 131399440's digits is 34
• More coming soon!