42142815

Names of 42142815

• Cardinal: 42142815 can be written as Forty-two million, one hundred forty-two thousand, eight hundred fifteen.

Scientific notation

• Scientific notation: 4.2142815 × 10⁷

Factors of 42142815

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 128

Divisors of 42142815

• Number of divisors d(n): 128
• Complete list of divisors:
  1 3 5 9 11 13 15 27 33 37 39 45 55 59 65 99 111 117 135 143 165 177 185 195 295 297 333 351 407 429 481 495 531 555 585 649 715 767 885 999 1221 1287 1443 1485 1593 1665 1755 1947 2035 2145 2183 2301 2405 2655 3245 3663 3835 3861 4329 4995 5291 5841 6105 6435 6549 6903 7215 7965 8437 9735 10915 10989 11505 12987 15873 17523 18315 19305 19647 20709 21645 24013 25311 26455 28379 29205 32745 34515 42185 47619 54945 58941 64935 72039 75933 79365 85137 87615 98235 103545 120065 126555 141895 142857 216117 227799 238095 255411 294705 312169 360195 379665 425685 648351 714285 766233 936507 1080585 1138995 1277055 1560845 2809521 3241755 3831165 4682535 8428563 14047605 42142815
• Sum of all divisors σ(n): 91929600
• Sum of proper divisors (its aliquot sum) s(n): 49786785
• 42142815 is an abundant number, because the sum of its proper divisors (49786785) is greater than itself. Its abundance is 7643970

Bases of 42142815

• Binary: 10100000110000110001011111₂
• Hexadecimal: 0x2830C5F
• Base-36: P39LR

Squares and roots of 42142815

• 42142815 squared (42142815²) is 1776016856124225
• 42142815 cubed (42142815³) is 74846349804524831193375
• The square root of 42142815 is 6491.7497641237
• The cube root of 42142815 is 347.9962098281

Scales and comparisons

• 42,142,815 seconds is equal to 1 year, 17 weeks, 4 days, 18 hours, 20 minutes, 15 seconds.
• To count from 1 to 42,142,815 would take you about two 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 42142815 cubic inches would be around 29 feet tall.

Recreational maths with 42142815

• 42142815 backwards is 51824124
• 42142815 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 42142815's digits is 27
• More coming soon!