1321212438

Names of 1321212438

• Cardinal: 1321212438 can be written as One billion, three hundred twenty-one million, two hundred twelve thousand, four hundred thirty-eight.

Scientific notation

• Scientific notation: 1.321212438 × 10⁹

Factors of 1321212438

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 1197

Divisors of 1321212438

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 3 6 7 9 13 14 18 21 26 27 39 42 54 63 78 91 117 126 182 189 234 273 313 351 378 546 626 702 819 859 939 1638 1718 1878 2191 2457 2577 2817 4069 4382 4914 5154 5634 6013 6573 7731 8138 8451 11167 12026 12207 13146 15462 16902 18039 19719 22334 23193 24414 28483 33501 36078 36621 39438 46386 54117 56966 59157 67002 73242 78169 85449 100503 108234 109863 118314 156338 162351 170898 201006 219726 234507 256347 268867 301509 324702 469014 512694 537734 603018 703521 769041 806601 1407042 1538082 1613202 1882069 2110563 2419803 3495271 3764138 4221126 4839606 5646207 6990542 7259409 10485813 11292414 14518818 16938621 20971626 24466897 31457439 33877242 48933794 50815863 62914878 73400691 94372317 101631726 146801382 188744634 220202073 440404146 660606219 1321212438
• Sum of all divisors σ(n): 3629337600
• Sum of proper divisors (its aliquot sum) s(n): 2308125162
• 1321212438 is an abundant number, because the sum of its proper divisors (2308125162) is greater than itself. Its abundance is 986912724

Bases of 1321212438

• Binary: 1001110110000000001101000010110₂
• Hexadecimal: 0x4EC01A16
• Base-36: LUM61I

Squares and roots of 1321212438

• 1321212438 squared (1321212438²) is 1745602306325903844
• 1321212438 cubed (1321212438³) is 2306311478919270240284811672
• The square root of 1321212438 is 36348.4860482525
• The cube root of 1321212438 is 1097.2970656831

Scales and comparisons

• 1,321,212,438 seconds is equal to 42 years, 3 days, 19 hours, 27 minutes, 18 seconds.
• To count from 1 to 1,321,212,438 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 1321212438 cubic inches would be around 91.4 feet tall.

Recreational maths with 1321212438

• 1321212438 backwards is 8342121231
• 1321212438 is a Harshad number.
• The number of decimal digits it has is: 10
• The sum of 1321212438's digits is 27
• More coming soon!