5478
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 24
- Digital Root
- 6
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 2
Divisibility
- Divisor Count
- 16
- Divisor Sum
- 12096
- Proper Divisor Sum (Aliquot Sum)
- 6618
- Abundant Number
- yes
- Perfect Number
- no
- Deficient Number
- no
- Highly Composite
- no
- Weird Number
- no
- Untouchable Number
- no
- Primitive Abundant
- no
Derived Values
- Euler's Totient
- 1640
- Möbius Function
- 1
- Radical
- 5478
- Omega Function (Ω)
- 4
- Little Omega Function (ω)
- 4
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
- 41
- Smith Number
- no
- Vampire Number
- no
Primality
- Prime
- no
- Composite Number
- yes
- Semiprime
- no
- 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
Appears in sequences
- Coefficients of elliptic function sn.at n=4A002753
- Coefficients of elliptic function sn.at n=2A004005
- Number of points on surface of octahedron; also coordination sequence for cubic lattice: a(0) = 1; for n > 0, a(n) = 4n^2 + 2.at n=37A005899
- Coordination sequence T6 for Zeolite Code MFI.at n=47A008169
- Coordination sequence T4 for Zeolite Code MTT.at n=45A008192
- Coordination sequence T1 for Scapolite.at n=47A008262
- Engel expansion of 1/Pi.at n=7A014012
- Numbers k such that phi(k) | sigma_10(k).at n=14A015768
- Numbers k such that phi(k) + 7 | sigma(k + 7).at n=3A015786
- a(n) = position of n^2 + (n+1)^2 + (n+2)^2 in A000408.at n=45A024802
- Expansion of 1/((1-2x)(1-3x)(1-7x)(1-12x)).at n=3A025947
- a(n) is the smallest k > a(n-1) such that k^2 has no digit in common with a(n-1)^2.at n=40A030287
- Numbers k such that the continued fraction for sqrt(k) has even period and if the last term of the periodic part is deleted the central term is 74.at n=0A031572
- Numbers k such that the least term in the periodic part of the continued fraction for sqrt(k) is 74.at n=1A031752
- Number of days in n years (n=4 is the first leap year).at n=14A033171
- a(n) is root of square starting with digit 3: first term of runs.at n=6A035070
- Number of partitions of n into parts not of form 4k+2, 16k, 16k+7 or 16k-7.at n=47A036023
- Numbers k such that 195*2^k-1 is prime.at n=46A050849
- McKay-Thompson series of class 41A for Monster.at n=43A058670
- Triangle of coefficients in expansion of elliptic function sn(u) in powers of u and k.at n=12A060628