18007892490

Names of 18007892490

• Cardinal: 18007892490 can be written as Eighteen billion, seven million, eight hundred ninety-two thousand, four hundred ninety.

Scientific notation

• Scientific notation: 1.800789249 × 10¹⁰

Factors of 18007892490

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 10390

Divisors of 18007892490

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 5 6 7 10 14 15 21 29 30 35 41 42 49 58 70 82 87 98 105 123 145 147 174 203 205 210 245 246 287 290 294 406 410 435 490 574 609 615 735 861 870 1015 1189 1218 1230 1421 1435 1470 1722 2009 2030 2378 2842 2870 3045 3567 4018 4263 4305 5945 6027 6090 7105 7134 8323 8526 8610 10045 10303 11890 12054 14210 16646 17835 20090 20606 21315 24969 30135 30909 35670 41615 42630 49938 51515 58261 60270 61818 72121 83230 103030 116522 124845 144242 154545 174783 216363 249690 291305 298787 309090 349566 360605 422423 432726 504847 582610 597574 721210 844846 873915 896361 1009694 1081815 1267269 1493935 1514541 1747830 1792722 2091509 2112115 2163630 2524235 2534538 2956961 2987870 3029082 4183018 4224230 4481805 5048470 5913922 6274527 6336345 7572705 8870883 8963610 10457545 12250267 12549054 12672690 14640563 14784805 15145410 17741766 20698727 20915090 24500534 29281126 29569610 31372635 36750801 41397454 43921689 44354415 61251335 62096181 62745270 73202815 73501602 85751869 87843378 88708830 103493635 122502670 124192362 146405630 171503738 183754005 206987270 219608445 257255607 310480905 367508010 428759345 439216890 514511214 600263083 620961810 857518690 1200526166 1286278035 1800789249 2572556070 3001315415 3601578498 6002630830 9003946245 18007892490
• Sum of all divisors σ(n): 53282396160
• Sum of proper divisors (its aliquot sum) s(n): 35274503670
• 18007892490 is an abundant number, because the sum of its proper divisors (35274503670) is greater than itself. Its abundance is 17266611180

Bases of 18007892490

• Binary: 10000110001010110101010001000001010₂
• Hexadecimal: 0x4315AA20A
• Base-36: 89TFMRU

Squares and roots of 18007892490

• 18007892490 squared (18007892490²) is 324284191931398400100
• 18007892490 cubed (18007892490³) is 5839674864507147844358805249000
• The square root of 18007892490 is 134193.4890000257
• The cube root of 18007892490 is 2621.1243785207

Scales and comparisons

• 18,007,892,490 seconds is equal to 572 years, 30 weeks, 6 days, 16 hours, 21 minutes, 30 seconds.
• To count from 1 to 18,007,892,490 would take you about one thousand, one hundred forty-five 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 18007892490 cubic inches would be around 218.4 feet tall.

Recreational maths with 18007892490

• 18007892490 backwards is 09429870081
• The number of decimal digits it has is: 11
• The sum of 18007892490's digits is 48
• More coming soon!