161000

Names of 161000

• Cardinal: 161000 can be written as One hundred sixty-one thousand.

Scientific notation

• Scientific notation: 1.61 × 10⁵

Factors of 161000

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 37

Divisors of 161000

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 4 5 7 8 10 14 20 23 25 28 35 40 46 50 56 70 92 100 115 125 140 161 175 184 200 230 250 280 322 350 460 500 575 644 700 805 875 920 1000 1150 1288 1400 1610 1750 2300 2875 3220 3500 4025 4600 5750 6440 7000 8050 11500 16100 20125 23000 32200 40250 80500 161000
• Sum of all divisors σ(n): 449280
• Sum of proper divisors (its aliquot sum) s(n): 288280
• 161000 is an abundant number, because the sum of its proper divisors (288280) is greater than itself. Its abundance is 127280

Bases of 161000

• Binary: 100111010011101000₂
• Hexadecimal: 0x274E8
• Base-36: 3G88

Squares and roots of 161000

• 161000 squared (161000²) is 25921000000
• 161000 cubed (161000³) is 4173281000000000
• The square root of 161000 is 401.2480529547
• The cube root of 161000 is 54.4012182543

Scales and comparisons

• 161,000 seconds is equal to 1 day, 20 hours, 43 minutes, 20 seconds.
• To count from 1 to 161,000 would take you about twenty hours.

  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 161000 cubic inches would be around 4.5 feet tall.

Recreational maths with 161000

• 161000 backwards is 000161
• 161000 is a Harshad number.
• The number of decimal digits it has is: 6
• The sum of 161000's digits is 8
• More coming soon!