198 (number)

← 197 198 199 →
← 190 191 192 193 194 195 196 197 198 199 →
Cardinalone hundred ninety-eight
Ordinal198th
(one hundred ninety-eighth)
Factorization2 × 32× 11
Divisors1, 2, 3, 6, 9, 11, 18, 22, 33, 66, 99, 198
Greek numeralΡϞΗ´
Roman numeralCXCVIII
Binary110001102
Ternary211003
Quaternary30124
Quinary12435
Senary5306
Octal3068
Duodecimal14612
HexadecimalC616
Vigesimal9I20
Base 365I36

198 (one hundred ninety-eight) is natural number after 197 and before 199.

In mathematics

  • 198 is the smallest number that can be made by adding four positive square numbers in ten different ways.[1][2]
  • 198 is a Pell–Lucas number. Its related Pell number is 70.[3]

References

  1. ↑ "198". NumberADay. Mathematical Association of America. 2012-10-25. Retrieved 2023-06-04.
  2. ↑ "A025366 - OEIS". oeis.org. Retrieved 2023-06-04.
  3. ↑ "A002203 - OEIS". oeis.org. Retrieved 2023-06-04.
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