18121252949742250

Names of 18121252949742250

• Cardinal: 18121252949742250 can be written as Eighteen quadrillion, one hundred twenty-one trillion, two hundred fifty-two billion, nine hundred forty-nine million, seven hundred forty-two thousand, two hundred fifty.

Scientific notation

• Scientific notation: 1.812125294974225 × 10¹⁶

Factors of 18121252949742250

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 110594

Divisors of 18121252949742250

• Number of divisors d(n): 216
• Complete list of divisors:
  1 2 5 7 10 11 14 22 25 35 49 50 55 70 77 98 110 121 125 154 175 242 245 250 275 350 385 490 539 550 605 770 847 875 1078 1210 1225 1375 1694 1750 1925 2450 2695 2750 3025 3850 4235 5390 5929 6050 6125 8470 9625 11858 12250 13475 15125 19250 21175 26950 29645 30250 42350 59290 67375 105875 110569 134750 148225 211750 221138 296450 552845 741125 773983 1105690 1216259 1482250 1547966 2432518 2764225 3869915 5417881 5528450 6081295 7739830 8513813 10835762 12162590 13378849 13821125 17027626 19349575 26757698 27089405 27642250 30406475 38699150 42569065 54178810 59596691 60812950 66894245 85138130 93651943 96747875 119193382 133788490 135447025 152032375 187303886 193495750 212845325 270894050 297983455 304064750 334471225 425690650 468259715 595966910 655563601 668942450 677235125 936519430 1064226625 1311127202 1354470250 1489917275 1672356125 2128453250 2341298575 2979834550 3277818005 3344712250 4682597150 6555636010 7449586375 11706492875 12225503761 14899172750 16389090025 23412985750 24451007522 32778180050 61127518805 81945450125 85578526327 122255037610 134480541371 163890900250 171157052654 268961082742 305637594025 427892631635 599049684289 611275188050 672402706855 855785263270 941363789597 1198099368578 1344805413710 1479285955081 1528187970125 1882727579194 2139463158175 2958571910162 2995248421445 3056375940250 3362013534275 4278926316350 4706818947985 5990496842890 6589546527179 6724027068550 7396429775405 9413637895970 10355001685567 10697315790875 13179093054358 14792859550810 14976242107225 16810067671375 20710003371134 21394631581750 23534094739925 29952484214450 32947732635895 33620135342750 36982148877025 47068189479850 51775008427835 65895465271790 72485011798969 73964297754050 74881210536125 103550016855670 117670473699625 144970023597938 149762421072250 164738663179475 184910744385125 235340947399250 258875042139175 329477326358950 362425058994845 369821488770250 517750084278350 724850117989690 823693315897375 1294375210695875 1647386631794750 1812125294974225 2588750421391750 3624250589948450 9060626474871125 18121252949742250
• Sum of all divisors σ(n): 43375354889869548
• Sum of proper divisors (its aliquot sum) s(n): 25254101940127298
• 18121252949742250 is an abundant number, because the sum of its proper divisors (25254101940127298) is greater than itself. Its abundance is 7132848990385048

Bases of 18121252949742250

• Binary: 1000000011000010010111011111100111101000101001010101010₂
• Hexadecimal: 0x40612EFCF452AA
• Base-36: 4YFG4OHE20A

Squares and roots of 18121252949742250

• 18121252949742250 squared (18121252949742250²) is 328379808468542196604341435062500
• 18121252949742250 cubed (18121252949742250³) is 5950653572846365366783135461758792554487640625000
• The square root of 18121252949742250 is 134615203.2637556507
• The cube root of 18121252949742250 is 262661.2908067163

Scales and comparisons

• 18,121,252,949,742,250 seconds is equal to 576,199,791 years, 4 weeks, 3 days, 8 hours, 24 minutes, 10 seconds.
• To count from 1 to 18,121,252,949,742,250 would take you about one billion, seven hundred twenty-eight million, five hundred ninety-nine thousand, three hundred seventy-three 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 18121252949742250 cubic inches would be around 21888.4 feet tall.

Recreational maths with 18121252949742250

• 18121252949742250 backwards is 05224794925212181
• The number of decimal digits it has is: 17
• The sum of 18121252949742250's digits is 64
• More coming soon!