42705920

Names of 42705920

• Cardinal: 42705920 can be written as Forty-two million, seven hundred five thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 4.270592 × 10⁷

Factors of 42705920

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 465

Divisors of 42705920

• Number of divisors d(n): 88
• Complete list of divisors:
  1 2 4 5 8 10 16 19 20 32 38 40 64 76 80 95 128 152 160 190 256 304 320 380 439 512 608 640 760 878 1024 1216 1280 1520 1756 2195 2432 2560 3040 3512 4390 4864 5120 6080 7024 8341 8780 9728 12160 14048 16682 17560 19456 24320 28096 33364 35120 41705 48640 56192 66728 70240 83410 97280 112384 133456 140480 166820 224768 266912 280960 333640 449536 533824 561920 667280 1067648 1123840 1334560 2135296 2247680 2669120 4270592 5338240 8541184 10676480 21352960 42705920
• Sum of all divisors σ(n): 108081600
• Sum of proper divisors (its aliquot sum) s(n): 65375680
• 42705920 is an abundant number, because the sum of its proper divisors (65375680) is greater than itself. Its abundance is 22669760

Bases of 42705920

• Binary: 10100010111010010000000000₂
• Hexadecimal: 0x28BA400
• Base-36: PFC3K

Squares and roots of 42705920

• 42705920 squared (42705920²) is 1823795603046400
• 42705920 cubed (42705920³) is 77886869120051314688000
• The square root of 42705920 is 6534.9766640747
• The cube root of 42705920 is 349.5393122529

Scales and comparisons

• 42,705,920 seconds is equal to 1 year, 18 weeks, 4 days, 6 hours, 45 minutes, 20 seconds.
• To count from 1 to 42,705,920 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 42705920 cubic inches would be around 29.1 feet tall.

Recreational maths with 42705920

• 42705920 backwards is 02950724
• The number of decimal digits it has is: 8
• The sum of 42705920's digits is 29
• More coming soon!