42857920

Names of 42857920

• Cardinal: 42857920 can be written as Forty-two million, eight hundred fifty-seven thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 4.285792 × 10⁷

Factors of 42857920

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 86

Divisors of 42857920

• Number of divisors d(n): 168
• Complete list of divisors:
  1 2 4 5 7 8 10 14 16 19 20 28 32 35 38 40 53 56 64 70 76 80 95 106 112 133 140 152 160 190 212 224 265 266 280 304 320 361 371 380 424 448 530 532 560 608 665 722 742 760 848 1007 1060 1064 1120 1216 1330 1444 1484 1520 1696 1805 1855 2014 2120 2128 2240 2527 2660 2888 2968 3040 3392 3610 3710 4028 4240 4256 5035 5054 5320 5776 5936 6080 7049 7220 7420 8056 8480 8512 10070 10108 10640 11552 11872 12635 14098 14440 14840 16112 16960 19133 20140 20216 21280 23104 23744 25270 28196 28880 29680 32224 35245 38266 40280 40432 42560 50540 56392 57760 59360 64448 70490 76532 80560 80864 95665 101080 112784 115520 118720 133931 140980 153064 161120 161728 191330 202160 225568 267862 281960 306128 322240 382660 404320 451136 535724 563920 612256 669655 765320 808640 1071448 1127840 1224512 1339310 1530640 2142896 2255680 2678620 3061280 4285792 5357240 6122560 8571584 10714480 21428960 42857920
• Sum of all divisors σ(n): 125419104
• Sum of proper divisors (its aliquot sum) s(n): 82561184
• 42857920 is an abundant number, because the sum of its proper divisors (82561184) is greater than itself. Its abundance is 39703264

Bases of 42857920

• Binary: 10100011011111010111000000₂
• Hexadecimal: 0x28DF5C0
• Base-36: PILDS

Squares and roots of 42857920

• 42857920 squared (42857920²) is 1836801306726400
• 42857920 cubed (42857920³) is 78721483459575513088000
• The square root of 42857920 is 6546.5960620769
• The cube root of 42857920 is 349.9535176367

Scales and comparisons

• 42,857,920 seconds is equal to 1 year, 18 weeks, 6 days, 58 minutes, 40 seconds.
• To count from 1 to 42,857,920 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 42857920 cubic inches would be around 29.2 feet tall.

Recreational maths with 42857920

• 42857920 backwards is 02975824
• The number of decimal digits it has is: 8
• The sum of 42857920's digits is 37
• More coming soon!