18190129664

Names of 18190129664

• Cardinal: 18190129664 can be written as Eighteen billion, one hundred ninety million, one hundred twenty-nine thousand, six hundred sixty-four.

Scientific notation

• Scientific notation: 1.8190129664 × 10¹⁰

Factors of 18190129664

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 14806

Divisors of 18190129664

• Number of divisors d(n): 100
• Complete list of divisors:
  1 2 4 7 8 14 16 28 32 49 56 64 98 112 128 196 224 256 343 392 448 512 686 784 896 1372 1568 1792 2401 2744 3136 3584 4802 5488 6272 9604 10976 12544 14797 19208 21952 25088 29594 38416 43904 59188 76832 87808 103579 118376 153664 175616 207158 236752 307328 414316 473504 614656 725053 828632 947008 1229312 1450106 1657264 1894016 2900212 3314528 3788032 5075371 5800424 6629056 7576064 10150742 11600848 13258112 20301484 23201696 26516224 35527597 40602968 46403392 53032448 71055194 81205936 92806784 142110388 162411872 185613568 284220776 324823744 371227136 568441552 649647488 1136883104 1299294976 2273766208 2598589952 4547532416 9095064832 18190129664
• Sum of all divisors σ(n): 42402529554
• Sum of proper divisors (its aliquot sum) s(n): 24212399890
• 18190129664 is an abundant number, because the sum of its proper divisors (24212399890) is greater than itself. Its abundance is 6022270226

Bases of 18190129664

• Binary: 10000111100001101110101101000000000₂
• Hexadecimal: 0x43C375A00
• Base-36: 8CTXLVK

Squares and roots of 18190129664

• 18190129664 squared (18190129664²) is 330880817193132752896
• 18190129664 cubed (18190129664³) is 6018764968073365305543511506944
• The square root of 18190129664 is 134870.7887720689
• The cube root of 18190129664 is 2629.9365145369

Scales and comparisons

• 18,190,129,664 seconds is equal to 578 years, 20 weeks, 1 day, 21 hours, 47 minutes, 44 seconds.
• To count from 1 to 18,190,129,664 would take you about one thousand, one hundred fifty-six 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 18190129664 cubic inches would be around 219.2 feet tall.

Recreational maths with 18190129664

• 18190129664 backwards is 46692109181
• The number of decimal digits it has is: 11
• The sum of 18190129664's digits is 47
• More coming soon!