42251840

Names of 42251840

• Cardinal: 42251840 can be written as Forty-two million, two hundred fifty-one thousand, eight hundred forty.

Scientific notation

• Scientific notation: 4.225184 × 10⁷

Factors of 42251840

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 193

Divisors of 42251840

• Number of divisors d(n): 84
• Complete list of divisors:
  1 2 4 5 8 10 16 20 29 32 40 58 64 80 116 145 157 160 232 290 314 320 464 580 628 785 841 928 1160 1256 1570 1682 1856 2320 2512 3140 3364 4205 4553 4640 5024 6280 6728 8410 9106 9280 10048 12560 13456 16820 18212 22765 25120 26912 33640 36424 45530 50240 53824 67280 72848 91060 132037 134560 145696 182120 264074 269120 291392 364240 528148 660185 728480 1056296 1320370 1456960 2112592 2640740 4225184 5281480 8450368 10562960 21125920 42251840
• Sum of all divisors σ(n): 104864916
• Sum of proper divisors (its aliquot sum) s(n): 62613076
• 42251840 is an abundant number, because the sum of its proper divisors (62613076) is greater than itself. Its abundance is 20361236

Bases of 42251840

• Binary: 10100001001011011001000000₂
• Hexadecimal: 0x284B640
• Base-36: P5LQ8

Squares and roots of 42251840

• 42251840 squared (42251840²) is 1785217983385600
• 42251840 cubed (42251840³) is 75428744599131029504000
• The square root of 42251840 is 6500.1415369205
• The cube root of 42251840 is 348.2960443791

Scales and comparisons

• 42,251,840 seconds is equal to 1 year, 17 weeks, 6 days, 37 minutes, 20 seconds.
• To count from 1 to 42,251,840 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 42251840 cubic inches would be around 29 feet tall.

Recreational maths with 42251840

• 42251840 backwards is 04815224
• The number of decimal digits it has is: 8
• The sum of 42251840's digits is 26
• More coming soon!