1221288201

Names of 1221288201

• Cardinal: 1221288201 can be written as One billion, two hundred twenty-one million, two hundred eighty-eight thousand, two hundred one.

Scientific notation

• Scientific notation: 1.221288201 × 10⁹

Factors of 1221288201

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 303

Divisors of 1221288201

• Number of divisors d(n): 96
• Complete list of divisors:
  1 3 7 9 21 23 49 63 69 103 147 161 167 207 309 343 441 483 501 721 927 1029 1127 1169 1449 1503 2163 2369 3087 3381 3507 3841 5047 6489 7107 7889 8183 10143 10521 11523 15141 16583 17201 21321 23667 24549 26887 34569 35329 45423 49749 51603 57281 71001 73647 80661 105987 116081 120407 149247 154809 171843 188209 241983 317961 348243 361221 395623 515529 564627 812567 842849 1044729 1083663 1186869 1317463 1693881 2437701 2528547 2769361 3560607 3952389 5899943 7313103 7585641 8308083 11857167 17699829 19385527 24924249 53099487 58156581 135698689 174469743 407096067 1221288201
• Sum of all divisors σ(n): 2180505600
• Sum of proper divisors (its aliquot sum) s(n): 959217399
• 1221288201 is a deficient number, because the sum of its proper divisors (959217399) is less than itself. Its deficiency is 262070802

Bases of 1221288201

• Binary: 1001000110010110110000100001001₂
• Hexadecimal: 0x48CB6109
• Base-36: K74G09

Squares and roots of 1221288201

• 1221288201 squared (1221288201²) is 1491544869901816401
• 1221288201 cubed (1221288201³) is 1821606150873168399009584601
• The square root of 1221288201 is 34946.9340715319
• The cube root of 1221288201 is 1068.9056855791

Scales and comparisons

• 1,221,288,201 seconds is equal to 38 years, 43 weeks, 2 days, 6 hours, 43 minutes, 21 seconds.
• To count from 1 to 1,221,288,201 would take you about seventy-seven 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 1221288201 cubic inches would be around 89.1 feet tall.

Recreational maths with 1221288201

• 1221288201 backwards is 1028821221
• The number of decimal digits it has is: 10
• The sum of 1221288201's digits is 27
• More coming soon!