1321942545

Names of 1321942545

• Cardinal: 1321942545 can be written as One billion, three hundred twenty-one million, nine hundred forty-two thousand, five hundred forty-five.

Scientific notation

• Scientific notation: 1.321942545 × 10⁹

Factors of 1321942545

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 1077

Divisors of 1321942545

• Number of divisors d(n): 128
• Complete list of divisors:
  1 3 5 7 9 11 15 21 27 33 35 45 55 63 77 99 105 121 135 165 189 231 297 315 363 385 495 605 693 847 945 1051 1089 1155 1331 1485 1815 2079 2541 3153 3267 3465 3993 4235 5255 5445 6655 7357 7623 9317 9459 10395 11561 11979 12705 15765 16335 19965 22071 22869 27951 28377 34683 35937 36785 38115 46585 47295 57805 59895 66213 80927 83853 104049 110355 114345 127171 139755 141885 173415 179685 198639 242781 251559 312147 331065 381513 404635 419265 520245 635855 728343 890197 993195 1144539 1213905 1257795 1398881 1560735 1907565 2185029 2670591 3433617 3641715 4196643 4450985 5722695 6994405 8011773 9792167 10925145 12589929 13352955 17168085 20983215 24035319 29376501 37769787 40058865 48960835 62949645 88129503 120176595 146882505 188848935 264388509 440647515 1321942545
• Sum of all divisors σ(n): 2957045760
• Sum of proper divisors (its aliquot sum) s(n): 1635103215
• 1321942545 is an abundant number, because the sum of its proper divisors (1635103215) is greater than itself. Its abundance is 313160670

Bases of 1321942545

• Binary: 1001110110010110011111000010001₂
• Hexadecimal: 0x4ECB3E11
• Base-36: LV1TE9

Squares and roots of 1321942545

• 1321942545 squared (1321942545²) is 1747532092281077025
• 1321942545 cubed (1321942545³) is 2310137021539221817769528625
• The square root of 1321942545 is 36358.5278167309
• The cube root of 1321942545 is 1097.4991519685

Scales and comparisons

• 1,321,942,545 seconds is equal to 42 years, 1 week, 5 days, 6 hours, 15 minutes, 45 seconds.
• To count from 1 to 1,321,942,545 would take you about eighty-four 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 1321942545 cubic inches would be around 91.5 feet tall.

Recreational maths with 1321942545

• 1321942545 backwards is 5452491231
• The number of decimal digits it has is: 10
• The sum of 1321942545's digits is 36
• More coming soon!