1138920090

Names of 1138920090

• Cardinal: 1138920090 can be written as One billion, one hundred thirty-eight million, nine hundred twenty thousand and ninety.

Scientific notation

• Scientific notation: 1.13892009 × 10⁹

Factors of 1138920090

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 107

Divisors of 1138920090

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 3 5 6 7 10 11 14 15 21 22 30 33 35 42 55 66 70 77 79 105 110 154 158 165 210 231 237 330 385 395 462 474 553 770 790 869 1106 1155 1185 1659 1738 2310 2370 2607 2765 3318 4345 5214 5530 6083 6241 8295 8690 12166 12482 13035 16590 18249 18723 26070 30415 31205 36498 37446 43687 60830 62410 68651 87374 91245 93615 131061 137302 182490 187230 205953 218435 262122 343255 411906 436870 480557 493039 655305 686510 961114 986078 1029765 1310610 1441671 1479117 2059530 2402785 2465195 2883342 2958234 3451273 4805570 4930390 5423429 6902546 7208355 7395585 10353819 10846858 14416710 14791170 16270287 17256365 20707638 27117145 32540574 34512730 37964003 51769095 54234290 75928006 81351435 103538190 113892009 162702870 189820015 227784018 379640030 569460045 1138920090
• Sum of all divisors σ(n): 3451576320
• Sum of proper divisors (its aliquot sum) s(n): 2312656230
• 1138920090 is an abundant number, because the sum of its proper divisors (2312656230) is greater than itself. Its abundance is 1173736140

Bases of 1138920090

• Binary: 1000011111000101000101010011010₂
• Hexadecimal: 0x43E28A9A
• Base-36: IU30D6

Squares and roots of 1138920090

• 1138920090 squared (1138920090²) is 1297138971405608100
• 1138920090 cubed (1138920090³) is 1477337634055782603756729000
• The square root of 1138920090 is 33747.8901562751
• The cube root of 1138920090 is 1044.3139625445

Scales and comparisons

• 1,138,920,090 seconds is equal to 36 years, 11 weeks, 22 hours, 41 minutes, 30 seconds.
• To count from 1 to 1,138,920,090 would take you about seventy-two 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 1138920090 cubic inches would be around 87 feet tall.

Recreational maths with 1138920090

• 1138920090 backwards is 0900298311
• 1138920090 is a Harshad number.
• The number of decimal digits it has is: 10
• The sum of 1138920090's digits is 33
• More coming soon!