1680661980

Names of 1680661980

• Cardinal: 1680661980 can be written as One billion, six hundred eighty million, six hundred sixty-one thousand, nine hundred eighty.

Scientific notation

• Scientific notation: 1.68066198 × 10⁹

Factors of 1680661980

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 135352

Divisors of 1680661980

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 3 4 5 6 9 10 12 15 18 20 23 27 30 36 45 46 54 60 69 90 92 108 115 135 138 180 207 230 270 276 345 414 460 540 621 690 828 1035 1242 1380 2070 2484 3105 4140 6210 12420 135319 270638 405957 541276 676595 811914 1217871 1353190 1623828 2029785 2435742 2706380 3112337 3653613 4059570 4871484 6089355 6224674 7307226 8119140 9337011 12178710 12449348 14614452 15561685 18268065 18674022 24357420 28011033 31123370 36536130 37348044 46685055 56022066 62246740 73072260 84033099 93370110 112044132 140055165 168066198 186740220 280110330 336132396 420165495 560220660 840330990 1680661980
• Sum of all divisors σ(n): 5456102400
• Sum of proper divisors (its aliquot sum) s(n): 3775440420
• 1680661980 is an abundant number, because the sum of its proper divisors (3775440420) is greater than itself. Its abundance is 2094778440

Bases of 1680661980

• Binary: 1100100001011001101110111011100₂
• Hexadecimal: 0x642CDDDC
• Base-36: RSMF30

Squares and roots of 1680661980

• 1680661980 squared (1680661980²) is 2824624691017520400
• 1680661980 cubed (1680661980³) is 4747239325962394050154392000
• The square root of 1680661980 is 40995.8775976317
• The cube root of 1680661980 is 1188.9405112175

Scales and comparisons

• 1,680,661,980 seconds is equal to 53 years, 22 weeks, 6 days, 2 hours, 33 minutes.
• To count from 1 to 1,680,661,980 would take you about one hundred six 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 1680661980 cubic inches would be around 99.1 feet tall.

Recreational maths with 1680661980

• 1680661980 backwards is 0891660861
• 1680661980 is a Harshad number.
• The number of decimal digits it has is: 10
• The sum of 1680661980's digits is 45
• More coming soon!