1681609072

Names of 1681609072

• Cardinal: 1681609072 can be written as One billion, six hundred eighty-one million, six hundred nine thousand and seventy-two.

Scientific notation

• Scientific notation: 1.681609072 × 10⁹

Factors of 1681609072

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 7700

Divisors of 1681609072

• Number of divisors d(n): 80
• Complete list of divisors:
  1 2 4 8 11 13 16 22 26 44 52 88 97 104 143 176 194 208 286 388 572 776 1067 1144 1261 1552 2134 2288 2522 4268 5044 7577 8536 10088 13871 15154 17072 20176 27742 30308 55484 60616 83347 98501 110968 121232 166694 197002 221936 333388 394004 666776 734969 788008 1083511 1333552 1469938 1576016 2167022 2939876 4334044 5879752 8084659 8668088 9554597 11759504 16169318 17336176 19109194 32338636 38218388 64677272 76436776 105100567 129354544 152873552 210201134 420402268 840804536 1681609072
• Sum of all divisors σ(n): 3867689952
• Sum of proper divisors (its aliquot sum) s(n): 2186080880
• 1681609072 is an abundant number, because the sum of its proper divisors (2186080880) is greater than itself. Its abundance is 504471808

Bases of 1681609072

• Binary: 1100100001110110101000101110000₂
• Hexadecimal: 0x643B5170
• Base-36: RT6PV4

Squares and roots of 1681609072

• 1681609072 squared (1681609072²) is 2827809071032701184
• 1681609072 cubed (1681609072³) is 4755269387732482719679541248
• The square root of 1681609072 is 41007.4270346239
• The cube root of 1681609072 is 1189.1638011297

Scales and comparisons

• 1,681,609,072 seconds is equal to 53 years, 24 weeks, 3 days, 1 hour, 37 minutes, 52 seconds.
• To count from 1 to 1,681,609,072 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 1681609072 cubic inches would be around 99.1 feet tall.

Recreational maths with 1681609072

• 1681609072 backwards is 2709061861
• The number of decimal digits it has is: 10
• The sum of 1681609072's digits is 40
• More coming soon!