142749000

Names of 142749000

• Cardinal: 142749000 can be written as One hundred forty-two million, seven hundred forty-nine thousand.

Scientific notation

• Scientific notation: 1.42749 × 10⁸

Factors of 142749000

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 338

Divisors of 142749000

• Number of divisors d(n): 256
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 17 18 20 24 25 27 30 34 36 40 45 50 51 54 60 68 72 75 85 90 100 102 108 120 125 135 136 150 153 170 180 200 204 216 225 250 255 270 300 306 311 340 360 375 408 425 450 459 500 510 540 600 612 622 675 680 750 765 850 900 918 933 1000 1020 1080 1125 1224 1244 1275 1350 1500 1530 1555 1700 1800 1836 1866 2040 2125 2250 2295 2488 2550 2700 2799 3000 3060 3110 3375 3400 3672 3732 3825 4250 4500 4590 4665 5100 5287 5400 5598 6120 6220 6375 6750 7464 7650 7775 8397 8500 9000 9180 9330 10200 10574 11196 11475 12440 12750 13500 13995 15300 15550 15861 16794 17000 18360 18660 19125 21148 22392 22950 23325 25500 26435 27000 27990 30600 31100 31722 33588 37320 38250 38875 41985 42296 45900 46650 47583 51000 52870 55980 57375 62200 63444 67176 69975 76500 77750 79305 83970 91800 93300 95166 105740 111960 114750 116625 126888 132175 139950 142749 153000 155500 158610 167940 186600 190332 209925 211480 229500 233250 237915 264350 279900 285498 311000 317220 335880 349875 380664 396525 419850 459000 466500 475830 528700 559800 570996 634440 660875 699750 713745 793050 839700 933000 951660 1049625 1057400 1141992 1189575 1321750 1399500 1427490 1586100 1679400 1903320 1982625 2099250 2379150 2643500 2799000 2854980 3172200 3568725 3965250 4198500 4758300 5287000 5709960 5947875 7137450 7930500 8397000 9516600 11895750 14274900 15861000 17843625 23791500 28549800 35687250 47583000 71374500 142749000
• Sum of all divisors σ(n): 525657600
• Sum of proper divisors (its aliquot sum) s(n): 382908600
• 142749000 is an abundant number, because the sum of its proper divisors (382908600) is greater than itself. Its abundance is 240159600

Bases of 142749000

• Binary: 1000100000100010110101001000₂
• Hexadecimal: 0x8822D48
• Base-36: 2CZLU0

Squares and roots of 142749000

• 142749000 squared (142749000²) is 20377277001000000
• 142749000 cubed (142749000³) is 2908835914615749000000000
• The square root of 142749000 is 11947.7612965777
• The cube root of 142749000 is 522.6260160173

Scales and comparisons

• 142,749,000 seconds is equal to 4 years, 28 weeks, 4 hours, 30 minutes.
• To count from 1 to 142,749,000 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 142749000 cubic inches would be around 43.6 feet tall.

Recreational maths with 142749000

• 142749000 backwards is 000947241
• 142749000 is a Harshad number.
• The number of decimal digits it has is: 9
• The sum of 142749000's digits is 27
• More coming soon!