2018918772

Names of 2018918772

• Cardinal: 2018918772 can be written as Two billion, eighteen million, nine hundred eighteen thousand, seven hundred seventy-two.

Scientific notation

• Scientific notation: 2.018918772 × 10⁹

Factors of 2018918772

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 116

Divisors of 2018918772

• Number of divisors d(n): 162
• Complete list of divisors:
  1 2 3 4 6 9 12 13 18 26 31 36 39 52 62 67 78 93 117 124 134 156 186 201 234 268 279 372 402 403 468 558 603 804 806 871 961 1116 1206 1209 1612 1742 1922 2077 2412 2418 2613 2883 3484 3627 3844 4154 4489 4836 5226 5766 6231 7254 7839 8308 8649 8978 10452 11532 12462 12493 13467 14508 15678 17298 17956 18693 24924 24986 26934 27001 31356 34596 37386 37479 40401 49972 53868 54002 58357 64387 74772 74958 80802 81003 108004 112437 116714 128774 139159 149916 161604 162006 175071 193161 224874 233428 243009 257548 278318 324012 350142 386322 417477 449748 486018 525213 556636 579483 700284 772644 834954 837031 972036 1050426 1158966 1252431 1669908 1674062 1809067 2100852 2317932 2504862 2511093 3348124 3618134 4313929 5009724 5022186 5427201 7236268 7533279 8627858 10044372 10854402 12941787 15066558 16281603 17255716 21708804 25883574 30133116 32563206 38825361 51767148 56081077 65126412 77650722 112162154 155301444 168243231 224324308 336486462 504729693 672972924 1009459386 2018918772
• Sum of all divisors σ(n): 5764978674
• Sum of proper divisors (its aliquot sum) s(n): 3746059902
• 2018918772 is an abundant number, because the sum of its proper divisors (3746059902) is greater than itself. Its abundance is 1727141130

Bases of 2018918772

• Binary: 1111000010101100100000101110100₂
• Hexadecimal: 0x78564174
• Base-36: XE0FP0

Squares and roots of 2018918772

• 2018918772 squared (2018918772²) is 4076033007933987984
• 2018918772 cubed (2018918772³) is 8229179555009553277720035648
• The square root of 2018918772 is 44932.3799948323
• The cube root of 2018918772 is 1263.8812820789

Scales and comparisons

• 2,018,918,772 seconds is equal to 64 years, 10 weeks, 1 day, 2 hours, 46 minutes, 12 seconds.
• To count from 1 to 2,018,918,772 would take you about one hundred twenty-eight 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 2018918772 cubic inches would be around 105.3 feet tall.

Recreational maths with 2018918772

• 2018918772 backwards is 2778198102
• The number of decimal digits it has is: 10
• The sum of 2018918772's digits is 45
• More coming soon!