1255500155

Names of 1255500155

• Cardinal: 1255500155 can be written as One billion, two hundred fifty-five million, five hundred thousand, one hundred fifty-five.

Scientific notation

• Scientific notation: 1.255500155 × 10⁹

Factors of 1255500155

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 264

Divisors of 1255500155

• Number of divisors d(n): 96
• Complete list of divisors:
  1 5 7 13 31 35 41 65 91 155 167 169 205 217 287 403 455 533 835 845 1085 1169 1183 1271 1435 2015 2171 2665 2821 3731 5177 5239 5845 5915 6355 6847 6929 8897 10855 14105 15197 16523 18655 25885 26195 28223 34235 34645 36239 36673 44485 47929 48503 67301 75985 82615 89011 115661 141115 181195 183365 197561 212257 214799 239645 242515 336505 445055 471107 578305 623077 874913 987805 1061285 1073995 1157143 1485799 1503593 2355535 2759341 3115385 4374565 5785715 6124391 7428995 7517965 8100001 13796705 19315387 30621955 35871433 40500005 96576935 179357165 251100031 1255500155
• Sum of all divisors σ(n): 1983356928
• Sum of proper divisors (its aliquot sum) s(n): 727856773
• 1255500155 is a deficient number, because the sum of its proper divisors (727856773) is less than itself. Its deficiency is 527643382

Bases of 1255500155

• Binary: 1001010110101010110100101111011₂
• Hexadecimal: 0x4AD5697B
• Base-36: KRHQ4B

Squares and roots of 1255500155

• 1255500155 squared (1255500155²) is 1576280639205024025
• 1255500155 cubed (1255500155³) is 1979020586845406740166223875
• The square root of 1255500155 is 35433.0376202775
• The cube root of 1255500155 is 1078.7949966171

Scales and comparisons

• 1,255,500,155 seconds is equal to 39 years, 47 weeks, 6 days, 6 hours, 2 minutes, 35 seconds.
• To count from 1 to 1,255,500,155 would take you about seventy-nine 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 1255500155 cubic inches would be around 89.9 feet tall.

Recreational maths with 1255500155

• 1255500155 backwards is 5510055521
• The number of decimal digits it has is: 10
• The sum of 1255500155's digits is 29
• More coming soon!