142210728

Names of 142210728

• Cardinal: 142210728 can be written as One hundred forty-two million, two hundred ten thousand, seven hundred twenty-eight.

Scientific notation

• Scientific notation: 1.42210728 × 10⁸

Factors of 142210728

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 368

Divisors of 142210728

• Number of divisors d(n): 160
• Complete list of divisors:
  1 2 3 4 6 8 9 11 12 18 22 24 27 33 36 44 54 66 71 72 81 88 99 108 132 142 162 198 213 216 264 281 284 297 324 396 426 562 568 594 639 648 781 792 843 852 891 1124 1188 1278 1562 1686 1704 1782 1917 2248 2343 2376 2529 2556 3091 3124 3372 3564 3834 4686 5058 5112 5751 6182 6248 6744 7029 7128 7587 7668 9273 9372 10116 11502 12364 14058 15174 15336 18546 18744 19951 20232 21087 22761 23004 24728 27819 28116 30348 37092 39902 42174 45522 46008 55638 56232 59853 60696 63261 74184 79804 83457 84348 91044 111276 119706 126522 159608 166914 168696 179559 182088 219461 222552 239412 250371 253044 333828 359118 438922 478824 500742 506088 538677 658383 667656 718236 877844 1001484 1077354 1316766 1436472 1616031 1755688 1975149 2002968 2154708 2633532 3232062 3950298 4309416 5267064 5925447 6464124 7900596 11850894 12928248 15801192 17776341 23701788 35552682 47403576 71105364 142210728
• Sum of all divisors σ(n): 442221120
• Sum of proper divisors (its aliquot sum) s(n): 300010392
• 142210728 is an abundant number, because the sum of its proper divisors (300010392) is greater than itself. Its abundance is 157799664

Bases of 142210728

• Binary: 1000011110011111011010101000₂
• Hexadecimal: 0x879F6A8
• Base-36: 2CO2I0

Squares and roots of 142210728

• 142210728 squared (142210728²) is 20223891158289984
• 142210728 cubed (142210728³) is 2876054284613181859748352
• The square root of 142210728 is 11925.2139603447
• The cube root of 142210728 is 521.9682897899

Scales and comparisons

• 142,210,728 seconds is equal to 4 years, 27 weeks, 22 hours, 58 minutes, 48 seconds.
• To count from 1 to 142,210,728 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 142210728 cubic inches would be around 43.5 feet tall.

Recreational maths with 142210728

• 142210728 backwards is 827012241
• 142210728 is a Harshad number.
• The number of decimal digits it has is: 9
• The sum of 142210728's digits is 27
• More coming soon!