668967471520816

Names of 668967471520816

• Cardinal: 668967471520816 can be written as Six hundred sixty-eight trillion, nine hundred sixty-seven billion, four hundred seventy-one million, five hundred twenty thousand, eight hundred sixteen.

Scientific notation

• Scientific notation: 6.68967471520816 × 10¹⁴

Factors of 668967471520816

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 2575013087

Divisors of 668967471520816

• Number of divisors d(n): 40
• Complete list of divisors:
  1 2 4 8 13 16 26 52 104 208 1249 2498 4996 9992 16237 19984 32474 64948 129896 259792 2575011823 5150023646 10300047292 20600094584 33475153699 41200189168 66950307398 133900614796 267801229592 535602459184 3216189766927 6432379533854 12864759067708 25729518135416 41810466970051 51459036270832 83620933940102 167241867880204 334483735760408 668967471520816
• Sum of all divisors σ(n): 1396943914520000
• Sum of proper divisors (its aliquot sum) s(n): 727976442999184
• 668967471520816 is an abundant number, because the sum of its proper divisors (727976442999184) is greater than itself. Its abundance is 59008971478368

Bases of 668967471520816

• Binary: 10011000000110110000100000100000011001110000110000₂
• Hexadecimal: 0x2606C20819C30
• Base-36: 6L4NEWBCJ4

Squares and roots of 668967471520816

• 668967471520816 squared (668967471520816²) is 447517477952953766023921305856
• 668967471520816 cubed (668967471520816³) is 299374635687560000634493930087020409006698496
• The square root of 668967471520816 is 25864405.4932800649
• The cube root of 668967471520816 is 87458.4279915883

Scales and comparisons

• 668,967,471,520,816 seconds is equal to 21,271,096 years, 17 weeks, 5 days, 12 hours, 40 minutes, 16 seconds.
• To count from 1 to 668,967,471,520,816 would take you about fifty-three million, one hundred seventy-seven thousand, seven hundred forty 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 668967471520816 cubic inches would be around 7288.2 feet tall.

Recreational maths with 668967471520816

• 668967471520816 backwards is 618025174769866
• The number of decimal digits it has is: 15
• The sum of 668967471520816's digits is 76
• More coming soon!