18398132740

Names of 18398132740

• Cardinal: 18398132740 can be written as Eighteen billion, three hundred ninety-eight million, one hundred thirty-two thousand, seven hundred forty.

Scientific notation

• Scientific notation: 1.839813274 × 10¹⁰

Factors of 18398132740

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 8427

Divisors of 18398132740

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 4 5 10 13 20 26 52 53 65 106 130 163 212 260 265 326 530 652 689 815 1060 1378 1630 2119 2756 3260 3445 4238 6890 8191 8476 8639 10595 13780 16382 17278 21190 32764 34556 40955 42380 43195 81910 86390 106483 112307 163820 172780 212966 224614 425932 434123 449228 532415 561535 868246 1064830 1123070 1335133 1736492 2129660 2170615 2246140 2670266 4341230 5340532 5643599 6675665 8682460 11287198 13351330 17356729 22574396 26702660 28217995 34713458 56435990 69426916 70762049 86783645 112871980 141524098 173567290 283048196 347134580 353810245 707620490 919906637 1415240980 1839813274 3679626548 4599533185 9199066370 18398132740
• Sum of all divisors σ(n): 42658430976
• Sum of proper divisors (its aliquot sum) s(n): 24260298236
• 18398132740 is an abundant number, because the sum of its proper divisors (24260298236) is greater than itself. Its abundance is 5862165496

Bases of 18398132740

• Binary: 10001001000100111010011101000000100₂
• Hexadecimal: 0x4489D3A04
• Base-36: 8G9RU2S

Squares and roots of 18398132740

• 18398132740 squared (18398132740²) is 338491288318659907600
• 18398132740 cubed (18398132740³) is 6227607653820316398940934824000
• The square root of 18398132740 is 135639.7166762007
• The cube root of 18398132740 is 2639.9229364175

Scales and comparisons

• 18,398,132,740 seconds is equal to 585 years, 1 day, 8 hours, 25 minutes, 40 seconds.
• To count from 1 to 18,398,132,740 would take you about one thousand, one hundred seventy 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 18398132740 cubic inches would be around 220 feet tall.

Recreational maths with 18398132740

• 18398132740 backwards is 04723189381
• The number of decimal digits it has is: 11
• The sum of 18398132740's digits is 46
• More coming soon!