42099820

Names of 42099820

• Cardinal: 42099820 can be written as Forty-two million, ninety-nine thousand, eight hundred twenty.

Scientific notation

• Scientific notation: 4.209982 × 10⁷

Factors of 42099820

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 50

Divisors of 42099820

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 4 5 7 10 14 17 19 20 28 34 35 38 49 68 70 76 85 95 98 119 133 140 170 190 196 238 245 266 323 340 343 361 380 476 490 532 595 646 665 686 722 833 931 980 1190 1292 1330 1372 1444 1615 1666 1715 1805 1862 2261 2380 2527 2660 3230 3332 3430 3610 3724 4165 4522 4655 5054 5831 6137 6460 6517 6860 7220 8330 9044 9310 10108 11305 11662 12274 12635 13034 15827 16660 17689 18620 22610 23324 24548 25270 26068 29155 30685 31654 32585 35378 42959 45220 50540 58310 61370 63308 65170 70756 79135 85918 88445 110789 116620 122740 123823 130340 158270 171836 176890 214795 221578 247646 300713 316540 353780 429590 443156 495292 553945 601426 619115 859180 1107890 1202852 1238230 1503565 2104991 2215780 2476460 3007130 4209982 6014260 8419964 10524955 21049910 42099820
• Sum of all divisors σ(n): 115214400
• Sum of proper divisors (its aliquot sum) s(n): 73114580
• 42099820 is an abundant number, because the sum of its proper divisors (73114580) is greater than itself. Its abundance is 31014760

Bases of 42099820

• Binary: 10100000100110010001101100₂
• Hexadecimal: 0x282646C
• Base-36: P2CFG

Squares and roots of 42099820

• 42099820 squared (42099820²) is 1772394844032400
• 42099820 cubed (42099820³) is 74617503902692114168000
• The square root of 42099820 is 6488.4374081901
• The cube root of 42099820 is 347.8778251705

Scales and comparisons

• 42,099,820 seconds is equal to 1 year, 17 weeks, 4 days, 6 hours, 23 minutes, 40 seconds.
• To count from 1 to 42,099,820 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 42099820 cubic inches would be around 29 feet tall.

Recreational maths with 42099820

• 42099820 backwards is 02899024
• 42099820 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 42099820's digits is 34
• More coming soon!