130621491

Names of 130621491

• Cardinal: 130621491 can be written as One hundred thirty million, six hundred twenty-one thousand, four hundred ninety-one.

Scientific notation

• Scientific notation: 1.30621491 × 10⁸

Factors of 130621491

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 213

Divisors of 130621491

• Number of divisors d(n): 112
• Complete list of divisors:
  1 3 7 9 11 13 21 27 33 39 63 77 81 91 99 117 143 179 189 231 243 273 297 351 429 537 567 693 729 819 891 1001 1053 1253 1287 1611 1701 1969 2079 2327 2457 2673 3003 3159 3759 3861 4833 5103 5907 6237 6981 7371 8019 9009 9477 11277 11583 13783 14499 16289 17721 18711 20943 22113 25597 27027 33831 34749 41349 43497 48867 53163 56133 62829 66339 76791 81081 101493 104247 124047 130491 146601 159489 179179 188487 230373 243243 304479 372141 439803 478467 537537 565461 691119 729729 913437 1116423 1319409 1435401 1612611 1696383 2073357 3349269 3958227 4837833 6220071 10047807 11874681 14513499 18660213 43540497 130621491
• Sum of all divisors σ(n): 264418560
• Sum of proper divisors (its aliquot sum) s(n): 133797069
• 130621491 is an abundant number, because the sum of its proper divisors (133797069) is greater than itself. Its abundance is 3175578

Bases of 130621491

• Binary: 111110010010010000000110011₂
• Hexadecimal: 0x7C92033
• Base-36: 25RO6R

Squares and roots of 130621491

• 130621491 squared (130621491²) is 17061973911063081
• 130621491 cubed (130621491³) is 2228660471666161035273771
• The square root of 130621491 is 11428.9759383769
• The cube root of 130621491 is 507.3856874067

Scales and comparisons

• 130,621,491 seconds is equal to 4 years, 7 weeks, 6 days, 19 hours, 44 minutes, 51 seconds.
• To count from 1 to 130,621,491 would take you about six 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 130621491 cubic inches would be around 42.3 feet tall.

Recreational maths with 130621491

• 130621491 backwards is 194126031
• 130621491 is a Harshad number.
• The number of decimal digits it has is: 9
• The sum of 130621491's digits is 27
• More coming soon!