1420720

Names of 1420720

• Cardinal: 1420720 can be written as One million, four hundred twenty thousand, seven hundred twenty.

Scientific notation

• Scientific notation: 1.42072 × 10⁶

Factors of 1420720

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 116

Divisors of 1420720

• Number of divisors d(n): 80
• Complete list of divisors:
  1 2 4 5 7 8 10 14 16 20 28 35 40 43 56 59 70 80 86 112 118 140 172 215 236 280 295 301 344 413 430 472 560 590 602 688 826 860 944 1180 1204 1505 1652 1720 2065 2360 2408 2537 3010 3304 3440 4130 4720 4816 5074 6020 6608 8260 10148 12040 12685 16520 17759 20296 24080 25370 33040 35518 40592 50740 71036 88795 101480 142072 177590 202960 284144 355180 710360 1420720
• Sum of all divisors σ(n): 3928320
• Sum of proper divisors (its aliquot sum) s(n): 2507600
• 1420720 is an abundant number, because the sum of its proper divisors (2507600) is greater than itself. Its abundance is 1086880

Bases of 1420720

• Binary: 101011010110110110000₂
• Hexadecimal: 0x15ADB0
• Base-36: UG8G

Squares and roots of 1420720

• 1420720 squared (1420720²) is 2018445318400
• 1420720 cubed (1420720³) is 2867645632757248000
• The square root of 1420720 is 1191.9395957849
• The cube root of 1420720 is 112.4180802803

Scales and comparisons

• 1,420,720 seconds is equal to 2 weeks, 2 days, 10 hours, 38 minutes, 40 seconds.
• To count from 1 to 1,420,720 would take you about three weeks!

  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 1420720 cubic inches would be around 9.4 feet tall.

Recreational maths with 1420720

• 1420720 backwards is 0270241
• 1420720 is a Harshad number.
• The number of decimal digits it has is: 7
• The sum of 1420720's digits is 16
• More coming soon!