1681000000

Names of 1681000000

• Cardinal: 1681000000 can be written as One billion, six hundred eighty-one million.

Scientific notation

• Scientific notation: 1.681 × 10⁹

Factors of 1681000000

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 48

Divisors of 1681000000

• Number of divisors d(n): 147
• Complete list of divisors:
  1 2 4 5 8 10 16 20 25 32 40 41 50 64 80 82 100 125 160 164 200 205 250 320 328 400 410 500 625 656 800 820 1000 1025 1250 1312 1600 1640 1681 2000 2050 2500 2624 3125 3280 3362 4000 4100 5000 5125 6250 6560 6724 8000 8200 8405 10000 10250 12500 13120 13448 15625 16400 16810 20000 20500 25000 25625 26896 31250 32800 33620 40000 41000 42025 50000 51250 53792 62500 65600 67240 82000 84050 100000 102500 107584 125000 128125 134480 164000 168100 200000 205000 210125 250000 256250 268960 328000 336200 410000 420250 500000 512500 537920 640625 672400 820000 840500 1000000 1025000 1050625 1281250 1344800 1640000 1681000 2050000 2101250 2562500 2689600 3362000 4100000 4202500 5125000 5253125 6724000 8200000 8405000 10250000 10506250 13448000 16810000 20500000 21012500 26265625 33620000 41000000 42025000 52531250 67240000 84050000 105062500 168100000 210125000 336200000 420250000 840500000 1681000000
• Sum of all divisors σ(n): 4273792951
• Sum of proper divisors (its aliquot sum) s(n): 2592792951
• 1681000000 is an abundant number, because the sum of its proper divisors (2592792951) is greater than itself. Its abundance is 911792951

Bases of 1681000000

• Binary: 1100100001100100000011001000000₂
• Hexadecimal: 0x64320640
• Base-36: RSTNWG

Squares and roots of 1681000000

• 1681000000 squared (1681000000²) is 2825761000000000000
• 1681000000 cubed (1681000000³) is 4750104241000000000000000000
• 1681000000 is a perfect square number. Its square root is 41000
• The cube root of 1681000000 is 1189.0202136873

Scales and comparisons

• 1,681,000,000 seconds is equal to 53 years, 23 weeks, 3 days, 26 minutes, 40 seconds.
• To count from 1 to 1,681,000,000 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 1681000000 cubic inches would be around 99.1 feet tall.

Recreational maths with 1681000000

• 1681000000 backwards is 0000001861
• 1681000000 is a Harshad number.
• The number of decimal digits it has is: 10
• The sum of 1681000000's digits is 16
• More coming soon!