198408420

Names of 198408420

• Cardinal: 198408420 can be written as One hundred ninety-eight million, four hundred eight thousand, four hundred twenty.

Scientific notation

• Scientific notation: 1.9840842 × 10⁸

Factors of 198408420

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 52506

Divisors of 198408420

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 3 4 5 6 7 9 10 12 14 15 18 20 21 27 28 30 35 36 42 45 54 60 63 70 84 90 105 108 126 135 140 180 189 210 252 270 315 378 420 540 630 756 945 1260 1890 3780 52489 104978 157467 209956 262445 314934 367423 472401 524890 629868 734846 787335 944802 1049780 1102269 1417203 1469692 1574670 1837115 1889604 2204538 2362005 2834406 3149340 3306807 3674230 4409076 4724010 5511345 5668812 6613614 7086015 7348460 9448020 9920421 11022690 13227228 14172030 16534035 19840842 22045380 28344060 33068070 39681684 49602105 66136140 99204210 198408420
• Sum of all divisors σ(n): 705465600
• Sum of proper divisors (its aliquot sum) s(n): 507057180
• 198408420 is an abundant number, because the sum of its proper divisors (507057180) is greater than itself. Its abundance is 308648760

Bases of 198408420

• Binary: 1011110100110111100011100100₂
• Hexadecimal: 0xBD378E4
• Base-36: 3A4KX0

Squares and roots of 198408420

• 198408420 squared (198408420²) is 39365901126896400
• 198408420 cubed (198408420³) is 7810526244463734227688000
• The square root of 198408420 is 14085.7523760713
• The cube root of 198408420 is 583.2481450203

Scales and comparisons

• 198,408,420 seconds is equal to 6 years, 16 weeks, 9 hours, 27 minutes.
• To count from 1 to 198,408,420 would take you about nine 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 198408420 cubic inches would be around 48.6 feet tall.

Recreational maths with 198408420

• 198408420 backwards is 024804891
• 198408420 is a Harshad number.
• The number of decimal digits it has is: 9
• The sum of 198408420's digits is 36
• More coming soon!