1305013725

Names of 1305013725

• Cardinal: 1305013725 can be written as One billion, three hundred five million, thirteen thousand, seven hundred twenty-five.

Scientific notation

• Scientific notation: 1.305013725 × 10⁹

Factors of 1305013725

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 771

Divisors of 1305013725

• Number of divisors d(n): 72
• Complete list of divisors:
  1 3 5 9 15 25 45 71 75 151 213 225 355 453 541 639 755 1065 1359 1623 1775 2265 2705 3195 3775 4869 5325 6795 8115 10721 11325 13525 15975 24345 32163 33975 38411 40575 53605 81691 96489 115233 121725 160815 192055 245073 268025 345699 408455 482445 576165 735219 804075 960275 1225365 1728495 2042275 2412225 2880825 3676095 5800061 6126825 8642475 17400183 18380475 29000305 52200549 87000915 145001525 261002745 435004575 1305013725
• Sum of all divisors σ(n): 2390454144
• Sum of proper divisors (its aliquot sum) s(n): 1085440419
• 1305013725 is a deficient number, because the sum of its proper divisors (1085440419) is less than itself. Its deficiency is 219573306

Bases of 1305013725

• Binary: 1001101110010001110110111011101₂
• Hexadecimal: 0x4DC8EDDD
• Base-36: LKYZ19

Squares and roots of 1305013725

• 1305013725 squared (1305013725²) is 1703060822438375625
• 1305013725 cubed (1305013725³) is 2222517747791868157330453125
• The square root of 1305013725 is 36124.9737024125
• The cube root of 1305013725 is 1092.7941456887

Scales and comparisons

• 1,305,013,725 seconds is equal to 41 years, 25 weeks, 5 days, 7 hours, 48 minutes, 45 seconds.
• To count from 1 to 1,305,013,725 would take you about eighty-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 1305013725 cubic inches would be around 91.1 feet tall.

Recreational maths with 1305013725

• 1305013725 backwards is 5273105031
• The number of decimal digits it has is: 10
• The sum of 1305013725's digits is 27
• More coming soon!