1438195290

Names of 1438195290

• Cardinal: 1438195290 can be written as One billion, four hundred thirty-eight million, one hundred ninety-five thousand, two hundred ninety.

Scientific notation

• Scientific notation: 1.43819529 × 10⁹

Factors of 1438195290

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 2444

Divisors of 1438195290

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 3 5 6 7 10 14 15 21 23 30 35 42 46 69 70 105 115 131 138 161 210 230 262 322 345 393 483 655 690 786 805 917 966 1310 1610 1834 1965 2273 2415 2751 3013 3930 4546 4585 4830 5502 6026 6819 9039 9170 11365 13638 13755 15065 15911 18078 21091 22730 27510 30130 31822 34095 42182 45195 47733 52279 63273 68190 79555 90390 95466 104558 105455 126546 156837 159110 210910 238665 261395 297763 313674 316365 365953 477330 522790 595526 632730 731906 784185 893289 1097859 1488815 1568370 1786578 1829765 2084341 2195718 2977630 3659530 4168682 4466445 5489295 6253023 6848549 8932890 10421705 10978590 12506046 13697098 20545647 20843410 31265115 34242745 41091294 47939843 62530230 68485490 95879686 102728235 143819529 205456470 239699215 287639058 479398430 719097645 1438195290
• Sum of all divisors σ(n): 4149522432
• Sum of proper divisors (its aliquot sum) s(n): 2711327142
• 1438195290 is an abundant number, because the sum of its proper divisors (2711327142) is greater than itself. Its abundance is 1273131852

Bases of 1438195290

• Binary: 1010101101110010001111001011010₂
• Hexadecimal: 0x55B91E5A
• Base-36: NS9IL6

Squares and roots of 1438195290

• 1438195290 squared (1438195290²) is 2068405692178184100
• 1438195290 cubed (1438195290³) is 2974771324299854213372889000
• The square root of 1438195290 is 37923.5453247715
• The cube root of 1438195290 is 1128.7712882401

Scales and comparisons

• 1,438,195,290 seconds is equal to 45 years, 37 weeks, 6 days, 18 hours, 41 minutes, 30 seconds.
• To count from 1 to 1,438,195,290 would take you about ninety-one 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 1438195290 cubic inches would be around 94.1 feet tall.

Recreational maths with 1438195290

• 1438195290 backwards is 0925918341
• 1438195290 is a Harshad number.
• The number of decimal digits it has is: 10
• The sum of 1438195290's digits is 42
• More coming soon!