3977992161

Names of 3977992161

• Cardinal: 3977992161 can be written as Three billion, nine hundred seventy-seven million, nine hundred ninety-two thousand, one hundred sixty-one.

Scientific notation

• Scientific notation: 3.977992161 × 10⁹

Factors of 3977992161

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 128

Divisors of 3977992161

• Number of divisors d(n): 64
• Complete list of divisors:
  1 3 9 11 13 27 33 39 99 101 117 143 297 303 351 429 909 1111 1287 1313 2727 3333 3861 3939 9999 10201 11817 14443 29997 30603 35451 43329 91809 112211 129987 132613 275427 336633 389961 397839 1009899 1030301 1193517 1458743 3029697 3090903 3580551 4376229 9272709 11333311 13128687 13393913 27818127 33999933 39386061 40181739 101999799 120545217 147333043 305999397 361635651 441999129 1325997387 3977992161
• Sum of all divisors σ(n): 6992858880
• Sum of proper divisors (its aliquot sum) s(n): 3014866719
• 3977992161 is a deficient number, because the sum of its proper divisors (3014866719) is less than itself. Its deficiency is 963125442

Bases of 3977992161

• Binary: 11101101000110110101011111100001₂
• Hexadecimal: 0xED1B57E1
• Base-36: 1TSE6E9

Squares and roots of 3977992161

• 3977992161 squared (3977992161²) is 15824421632977449921
• 3977992161 cubed (3977992161³) is 62949425208343114875508069281
• The square root of 3977992161 is 63071.3259809875
• The cube root of 3977992161 is 1584.4844241221

Scales and comparisons

• 3,977,992,161 seconds is equal to 126 years, 25 weeks, 2 days, 13 hours, 49 minutes, 21 seconds.
• To count from 1 to 3,977,992,161 would take you about two hundred fifty-two 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 3977992161 cubic inches would be around 132 feet tall.

Recreational maths with 3977992161

• 3977992161 backwards is 1612997793
• The number of decimal digits it has is: 10
• The sum of 3977992161's digits is 54
• More coming soon!