142739450

Names of 142739450

• Cardinal: 142739450 can be written as One hundred forty-two million, seven hundred thirty-nine thousand, four hundred fifty.

Scientific notation

• Scientific notation: 1.4273945 × 10⁸

Factors of 142739450

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 84

Divisors of 142739450

• Number of divisors d(n): 120
• Complete list of divisors:
  1 2 5 7 10 14 25 29 35 41 49 50 58 70 82 98 145 175 203 205 245 287 290 343 350 406 410 490 574 686 725 1015 1025 1189 1225 1421 1435 1450 1715 2009 2030 2050 2378 2401 2450 2842 2870 3430 4018 4802 5075 5945 7105 7175 8323 8575 9947 10045 10150 11890 12005 14063 14210 14350 16646 17150 19894 20090 24010 28126 29725 35525 41615 49735 50225 58261 59450 60025 69629 70315 71050 83230 98441 99470 100450 116522 120050 139258 140630 196882 208075 248675 291305 348145 351575 407827 416150 492205 497350 582610 696290 703150 815654 984410 1456525 1740725 2039135 2461025 2854789 2913050 3481450 4078270 4922050 5709578 10195675 14273945 20391350 28547890 71369725 142739450
• Sum of all divisors σ(n): 328221180
• Sum of proper divisors (its aliquot sum) s(n): 185481730
• 142739450 is an abundant number, because the sum of its proper divisors (185481730) is greater than itself. Its abundance is 42742280

Bases of 142739450

• Binary: 1000100000100000011111111010₂
• Hexadecimal: 0x88207FA
• Base-36: 2CZEGQ

Squares and roots of 142739450

• 142739450 squared (142739450²) is 20374550586302500
• 142739450 cubed (142739450³) is 2908252144685996383625000
• The square root of 142739450 is 11947.3616334319
• The cube root of 142739450 is 522.6143610853

Scales and comparisons

• 142,739,450 seconds is equal to 4 years, 28 weeks, 1 hour, 50 minutes, 50 seconds.
• To count from 1 to 142,739,450 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 142739450 cubic inches would be around 43.6 feet tall.

Recreational maths with 142739450

• 142739450 backwards is 054937241
• 142739450 is a Harshad number.
• The number of decimal digits it has is: 9
• The sum of 142739450's digits is 35
• More coming soon!