70720

Names of 70720

• Cardinal: 70720 can be written as Seventy thousand, seven hundred twenty.

Scientific notation

• Scientific notation: 7.072 × 10⁴

Factors of 70720

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 37

Divisors of 70720

• Number of divisors d(n): 56
• Complete list of divisors:
  1 2 4 5 8 10 13 16 17 20 26 32 34 40 52 64 65 68 80 85 104 130 136 160 170 208 221 260 272 320 340 416 442 520 544 680 832 884 1040 1088 1105 1360 1768 2080 2210 2720 3536 4160 4420 5440 7072 8840 14144 17680 35360 70720
• Sum of all divisors σ(n): 192024
• Sum of proper divisors (its aliquot sum) s(n): 121304
• 70720 is an abundant number, because the sum of its proper divisors (121304) is greater than itself. Its abundance is 50584

Bases of 70720

• Binary: 10001010001000000₂
• Hexadecimal: 0x11440
• Base-36: 1IKG

Squares and roots of 70720

• 70720 squared (70720²) is 5001318400
• 70720 cubed (70720³) is 353693237248000
• The square root of 70720 is 265.9323222175
• The cube root of 70720 is 41.3536724965

Scales and comparisons

• 70,720 seconds is equal to 19 hours, 38 minutes, 40 seconds.
• To count from 1 to 70,720 would take you about nineteen hours.

  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 70720 cubic inches would be around 3.4 feet tall.

Recreational maths with 70720

• 70720 backwards is 02707
• 70720 is a Harshad number.
• The number of decimal digits it has is: 5
• The sum of 70720's digits is 16
• More coming soon!