401280

Names of 401280

• Cardinal: 401280 can be written as Four hundred one thousand, two hundred eighty.

Scientific notation

• Scientific notation: 4.0128 × 10⁵

Factors of 401280

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 40

Divisors of 401280

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 3 4 5 6 8 10 11 12 15 16 19 20 22 24 30 32 33 38 40 44 48 55 57 60 64 66 76 80 88 95 96 110 114 120 128 132 152 160 165 176 190 192 209 220 228 240 264 285 304 320 330 352 380 384 418 440 456 480 528 570 608 627 640 660 704 760 836 880 912 960 1045 1056 1140 1216 1254 1320 1408 1520 1672 1760 1824 1920 2090 2112 2280 2432 2508 2640 3040 3135 3344 3520 3648 4180 4224 4560 5016 5280 6080 6270 6688 7040 7296 8360 9120 10032 10560 12160 12540 13376 16720 18240 20064 21120 25080 26752 33440 36480 40128 50160 66880 80256 100320 133760 200640 401280
• Sum of all divisors σ(n): 1468800
• Sum of proper divisors (its aliquot sum) s(n): 1067520
• 401280 is an abundant number, because the sum of its proper divisors (1067520) is greater than itself. Its abundance is 666240

Bases of 401280

• Binary: 1100001111110000000₂
• Hexadecimal: 0x61F80
• Base-36: 8LMO

Squares and roots of 401280

• 401280 squared (401280²) is 161025638400
• 401280 cubed (401280³) is 64616368177152000
• The square root of 401280 is 633.4666526345
• The cube root of 401280 is 73.7591389613

Scales and comparisons

• 401,280 seconds is equal to 4 days, 15 hours, 28 minutes.
• To count from 1 to 401,280 would take you about four days.

  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 401280 cubic inches would be around 6.1 feet tall.

Recreational maths with 401280

• 401280 backwards is 082104
• 401280 is a Harshad number.
• The number of decimal digits it has is: 6
• The sum of 401280's digits is 15
• More coming soon!