548
domain: N
Properties
Digital Properties
- Digit Count
- 3
- Digit Sum
- 17
- Digital Root
- 8
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 2
Divisibility
- Divisor Count
- 6
- Divisor Sum
- 966
- Proper Divisor Sum (Aliquot Sum)
- 418
- Abundant Number
- no
- Perfect Number
- no
- Deficient Number
- yes
- Highly Composite
- no
- Weird Number
- no
- Untouchable Number
- no
- Primitive Abundant
- no
Derived Values
- Euler's Totient
- 272
- Möbius Function
- 0
- Radical
- 274
- Omega Function (Ω)
- 3
- Little Omega Function (ω)
- 2
Special
- Factorial
- no
- Catalan Number
- no
- Bell Number
- no
- Motzkin Number
- no
- Primorial
- no
Figurate Numbers
- Fibonacci Number
- no
- Triangular Number
- no
- Perfect Square
- no
- Perfect Cube
- no
- Pentagonal Number
- no
- Hexagonal Number
- no
- Lucas Number
- no
- Tetrahedral Number
- no
- Pell Number
- no
- Tribonacci Number
- no
- Pronic Number
- no
Recreational
- Happy Number
- no
- Harshad Number
- no
- Narcissistic Number
- no
- Collatz Steps
- 92
- Smith Number
- no
Primality
- Prime
- no
- Composite Number
- yes
- Semiprime
- no
- Squarefree Number
- no
- Prime Power
- no
- Prime Factorization
- no
- Twin Prime
- no
- Mersenne Prime
- no
- Sophie Germain Prime
- no
- Safe Prime
- no
- Powerful Number
- no
- Achilles Number
- no
- Perfect Power
- no
- Smooth Number
- no
- Carmichael Number
- no
Classification
- Even
- yes
- Odd
- no
Names
- German
- fünfhundertachtundvierzig· ordinal: fünfhundertachtundvierzigste
- English
- five hundred forty-eight· ordinal: five hundred forty-eighth
- Spanish
- quinientos cuarenta y ocho· ordinal: 548º
- French
- cinq cent quarante-huit· ordinal: cinq cent quarante-huitième
- Italian
- cinquecentoquarantotto· ordinal: 548º
- Latin
- quingenti quadraginta octo· ordinal: 548.
- Portuguese
- quinhentos e quarenta e oito· ordinal: 548º
Appears in sequences
- a(n) = floor(sinh(n)).at n=7A000471
- Nearest integer to sinh(n).at n=7A000495
- a(n) = floor(cosh(n)).at n=7A000501
- Numbers that are not the sum of 4 tetrahedral numbers.at n=32A000797
- a(n) = solution to the postage stamp problem with 3 denominations and n stamps.at n=17A001208
- Primes multiplied by 4.at n=32A001749
- Nearest integer to cosh(n).at n=7A002459
- Numbers k such that (k^2 + k + 1)/7 is prime.at n=46A002641
- (Presumed) solution to Waring's problem: g(n) = 2^n + floor((3/2)^n) - 2.at n=8A002804
- Numbers that are the sum of 8 positive 4th powers.at n=52A003342
- Number of rooted identity trees with n nodes (rooted trees whose automorphism group is the identity group).at n=12A004111
- Number of partitions of 3n into powers of 3.at n=37A005704
- Numbers whose ternary expansion contains no 1's.at n=43A005823
- Consider a 2-D cellular automaton generated by the Schrandt-Ulam rule of A170896, but confined to a semi-infinite strip of width n, starting with one ON cell at the top left corner; a(n) is the period of the resulting structure.at n=29A006447
- Expansion of a modular function.at n=10A006709
- Dimension of space of Vassiliev knot invariants of order n.at n=12A007473
- Coordination sequence T1 for Zeolite Code GOO.at n=16A008111
- Coordination sequence T4 for Zeolite Code MEL.at n=15A008153
- Coordination sequence T7 for Zeolite Code PAU.at n=17A008225
- Coordination sequence T2 for Zeolite Code VFI.at n=18A008246