1213138536

Names of 1213138536

• Cardinal: 1213138536 can be written as One billion, two hundred thirteen million, one hundred thirty-eight thousand, five hundred thirty-six.

Scientific notation

• Scientific notation: 1.213138536 × 10⁹

Factors of 1213138536

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 17414

Divisors of 1213138536

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 3 4 6 8 12 24 37 74 79 111 148 158 222 237 296 316 444 474 632 888 948 1896 2923 5846 8769 11692 17293 17538 23384 34586 35076 51879 69172 70152 103758 138344 207516 415032 639841 1279682 1366147 1919523 2559364 2732294 3839046 4098441 5118728 5464588 7678092 8196882 10929176 15356184 16393764 32787528 50547439 101094878 151642317 202189756 303284634 404379512 606569268 1213138536
• Sum of all divisors σ(n): 3154425600
• Sum of proper divisors (its aliquot sum) s(n): 1941287064
• 1213138536 is an abundant number, because the sum of its proper divisors (1941287064) is greater than itself. Its abundance is 728148528

Bases of 1213138536

• Binary: 1001000010011110000011001101000₂
• Hexadecimal: 0x484F0668
• Base-36: K29ROO

Squares and roots of 1213138536

• 1213138536 squared (1213138536²) is 1471705107528223296
• 1213138536 cubed (1213138536³) is 1785382179570511387990534656
• The square root of 1213138536 is 34830.1383287521
• The cube root of 1213138536 is 1066.5227721693

Scales and comparisons

• 1,213,138,536 seconds is equal to 38 years, 29 weeks, 5 days, 22 hours, 55 minutes, 36 seconds.
• To count from 1 to 1,213,138,536 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 1213138536 cubic inches would be around 88.9 feet tall.

Recreational maths with 1213138536

• 1213138536 backwards is 6358313121
• The number of decimal digits it has is: 10
• The sum of 1213138536's digits is 33
• More coming soon!