70015140

Names of 70015140

• Cardinal: 70015140 can be written as Seventy million, fifteen thousand, one hundred forty.

Scientific notation

• Scientific notation: 7.001514 × 10⁷

Factors of 70015140

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 29944

Divisors of 70015140

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 3 4 5 6 9 10 12 13 15 18 20 26 30 36 39 45 52 60 65 78 90 117 130 156 180 195 234 260 390 468 585 780 1170 2340 29921 59842 89763 119684 149605 179526 269289 299210 359052 388973 448815 538578 598420 777946 897630 1077156 1166919 1346445 1555892 1795260 1944865 2333838 2692890 3500757 3889730 4667676 5385780 5834595 7001514 7779460 11669190 14003028 17503785 23338380 35007570 70015140
• Sum of all divisors σ(n): 228723768
• Sum of proper divisors (its aliquot sum) s(n): 158708628
• 70015140 is an abundant number, because the sum of its proper divisors (158708628) is greater than itself. Its abundance is 88693488

Bases of 70015140

• Binary: 100001011000101100010100100₂
• Hexadecimal: 0x42C58A4
• Base-36: 15OO10

Squares and roots of 70015140

• 70015140 squared (70015140²) is 4902119829219600
• 70015140 cubed (70015140³) is 343222606139586384744000
• The square root of 70015140 is 8367.5050044803
• The cube root of 70015140 is 412.1582403435

Scales and comparisons

• 70,015,140 seconds is equal to 2 years, 11 weeks, 5 days, 8 hours, 39 minutes.
• To count from 1 to 70,015,140 would take you about three 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 70015140 cubic inches would be around 34.3 feet tall.

Recreational maths with 70015140

• 70015140 backwards is 04151007
• 70015140 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 70015140's digits is 18
• More coming soon!