400140

Names of 400140

• Cardinal: 400140 can be written as Four hundred thousand, one hundred forty.

Scientific notation

• Scientific notation: 4.0014 × 10⁵

Factors of 400140

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 42

Divisors of 400140

• Number of divisors d(n): 120
• Complete list of divisors:
  1 2 3 4 5 6 9 10 12 13 15 18 19 20 26 27 30 36 38 39 45 52 54 57 60 65 76 78 81 90 95 108 114 117 130 135 156 162 171 180 190 195 228 234 247 260 270 285 324 342 351 380 390 405 468 494 513 540 570 585 684 702 741 780 810 855 988 1026 1053 1140 1170 1235 1404 1482 1539 1620 1710 1755 2052 2106 2223 2340 2470 2565 2964 3078 3420 3510 3705 4212 4446 4940 5130 5265 6156 6669 7020 7410 7695 8892 10260 10530 11115 13338 14820 15390 20007 21060 22230 26676 30780 33345 40014 44460 66690 80028 100035 133380 200070 400140
• Sum of all divisors σ(n): 1422960
• Sum of proper divisors (its aliquot sum) s(n): 1022820
• 400140 is an abundant number, because the sum of its proper divisors (1022820) is greater than itself. Its abundance is 622680

Bases of 400140

• Binary: 1100001101100001100₂
• Hexadecimal: 0x61B0C
• Base-36: 8KR0

Squares and roots of 400140

• 400140 squared (400140²) is 160112019600
• 400140 cubed (400140³) is 64067223522744000
• The square root of 400140 is 632.5662020691
• The cube root of 400140 is 73.6892250437

Scales and comparisons

• 400,140 seconds is equal to 4 days, 15 hours, 9 minutes.
• To count from 1 to 400,140 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 400140 cubic inches would be around 6.1 feet tall.

Recreational maths with 400140

• 400140 backwards is 041004
• 400140 is a Harshad number.
• The number of decimal digits it has is: 6
• The sum of 400140's digits is 9
• More coming soon!