142890240

Names of 142890240

• Cardinal: 142890240 can be written as One hundred forty-two million, eight hundred ninety thousand, two hundred forty.

Scientific notation

• Scientific notation: 1.4289024 × 10⁸

Factors of 142890240

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 430

Divisors of 142890240

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 48 60 64 80 96 120 127 128 160 192 240 254 256 293 320 381 384 480 508 586 635 640 762 768 879 960 1016 1172 1270 1280 1465 1524 1758 1905 1920 2032 2344 2540 2930 3048 3516 3810 3840 4064 4395 4688 5080 5860 6096 7032 7620 8128 8790 9376 10160 11720 12192 14064 15240 16256 17580 18752 20320 23440 24384 28128 30480 32512 35160 37211 37504 40640 46880 48768 56256 60960 70320 74422 75008 81280 93760 97536 111633 112512 121920 140640 148844 162560 186055 187520 223266 225024 243840 281280 297688 372110 375040 446532 487680 558165 562560 595376 744220 893064 1116330 1125120 1190752 1488440 1786128 2232660 2381504 2976880 3572256 4465320 4763008 5953760 7144512 8930640 9526016 11907520 14289024 17861280 23815040 28578048 35722560 47630080 71445120 142890240
• Sum of all divisors σ(n): 461518848
• Sum of proper divisors (its aliquot sum) s(n): 318628608
• 142890240 is an abundant number, because the sum of its proper divisors (318628608) is greater than itself. Its abundance is 175738368

Bases of 142890240

• Binary: 1000100001000101010100000000₂
• Hexadecimal: 0x8845500
• Base-36: 2D2MTC

Squares and roots of 142890240

• 142890240 squared (142890240²) is 20417620687257600
• 142890240 cubed (142890240³) is 2917478720231203405824000
• The square root of 142890240 is 11953.6705659809
• The cube root of 142890240 is 522.7983263121

Scales and comparisons

• 142,890,240 seconds is equal to 4 years, 28 weeks, 1 day, 19 hours, 44 minutes.
• To count from 1 to 142,890,240 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 142890240 cubic inches would be around 43.6 feet tall.

Recreational maths with 142890240

• 142890240 backwards is 042098241
• 142890240 is a Harshad number.
• The number of decimal digits it has is: 9
• The sum of 142890240's digits is 30
• More coming soon!