554
domain: N
Properties
Digital Properties
- Digit Count
- 3
- Digit Sum
- 14
- Digital Root
- 5
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 2
Divisibility
- Divisor Count
- 4
- Divisor Sum
- 834
- Proper Divisor Sum (Aliquot Sum)
- 280
- 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
- 276
- Möbius Function
- 1
- Radical
- 554
- Omega Function (Ω)
- 2
- 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
- 17
- Smith Number
- no
Primality
- Prime
- no
- Composite Number
- yes
- Semiprime
- yes
- Squarefree Number
- yes
- 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
- fünfhundertvierundfünfzig· ordinal: fünfhundertvierundfünfzigste
- English
- five hundred fifty-four· ordinal: five hundred fifty-fourth
- Spanish
- quinientos cincuenta y cuatro· ordinal: 554º
- French
- cinq cent cinquante-quatre· ordinal: cinq cent cinquante-quatrième
- Italian
- cinquecentocinquantaquattro· ordinal: 554º
- Latin
- quingenti quinquaginta quattuor· ordinal: 554.
- Portuguese
- quinhentos e cinquenta e quatro· ordinal: 554º
Appears in sequences
- Number of 7-dimensional partitions of n.at n=4A000427
- Euler transform of A000579.at n=4A000428
- Number of permutation groups of degree n; also number of conjugacy classes of subgroups of symmetric group S_n; also number of molecular species of degree n.at n=9A000638
- Number of twin prime pairs < square of n-th prime.at n=42A000885
- Numbers k such that phi(k) = phi(k+2).at n=14A001494
- Number of 3-connected self-dual planar graphs with 2n edges.at n=7A002841
- Numbers that are the sum of 8 positive 5th powers.at n=19A003353
- Number of (undirected) Hamiltonian paths in the n-ladder graph K_2 X P_n.at n=23A003682
- Tetrahedral numbers written backwards.at n=13A004161
- a(n) = floor(n*phi^5), where phi is the golden ratio, A001622.at n=50A004920
- Coefficients of the '2nd-order' mock theta function mu(q).at n=63A006306
- a(n+1) = a(n) + sum of digits of a(n), with a(1)=7.at n=49A006507
- Numbers k such that phi(k) = phi(sigma(k)).at n=24A006872
- Coordination sequence T1 for Zeolite Code EAB.at n=17A008082
- Coordination sequence T3 for Zeolite Code GOO.at n=16A008113
- Coordination sequence T10 for Zeolite Code MFI.at n=15A008162
- Coordination sequence T2 for Cordierite.at n=14A008252
- Number of n-dimensional partitions of 5.at n=7A008779
- "Pascal sweep" for k=7: draw a horizontal line through the 1 at C(k,0) in Pascal's triangle; rotate this line and record the sum of the numbers on it (excluding the initial 1).at n=26A009504
- Coordination sequence T6 for Zeolite Code DFO.at n=18A009880