5444
domain: N
Properties
Digital Properties
- Digit Count
- 4
- 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
- 9534
- Proper Divisor Sum (Aliquot Sum)
- 4090
- 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
- 2720
- Möbius Function
- 0
- Radical
- 2722
- 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
- 54
- Smith Number
- no
- Vampire 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
Appears in sequences
- Number of partitions of 3n into n parts from the set {0, 1, ..., 6} (repetitions admissible).at n=20A001977
- Coordination sequence T1 for Zeolite Code FER.at n=45A008106
- Coordination sequence T4 for Zeolite Code FER.at n=45A008109
- Coordination sequence T5 for Zeolite Code MFI.at n=47A008168
- Expansion of sin(sin(log(1+x))).at n=9A009469
- Numbers k such that the continued fraction for sqrt(k) has period 50.at n=33A020389
- a(n) = A027113(n, n+4).at n=7A027117
- a(n) = A027113(n, 2n-7).at n=7A027125
- Number of partitions of n such that cn(0,5) = cn(1,5) <= cn(3,5) <= cn(2,5) = cn(4,5).at n=64A036864
- Sums of 5 distinct powers of 4.at n=19A038473
- Numbers having three 4's in base 10.at n=31A043507
- McKay-Thompson series of class 30D for Monster.at n=30A058615
- Four-digit numbers that do not resolve to 6174 under the Kaprekar map (see A151949).at n=36A069746
- Slowest increasing and self-describing sequence: first 2 digits are prime digits, followed by 3 composite digits, then 4 prime digits, then 6 composite digits, then 8 prime, then 2 composite, then 2 prime, etc.at n=29A105808
- Numbers n such that 2*prime(n) - prime(n+1) is a square.at n=35A110975
- Numbers such that the sum of the digits of floor(phi^n) is also the sum of the digits of the n-th Fibonacci number (in base 10), where phi is the golden ratio.at n=43A111366
- Let b(0)=1/2, b(n) = b(n-1) + Prime[n]/2; a(n)=b(2*n).at n=34A112039
- Number of partitions of n into an equal number of prime and composite parts.at n=55A116449
- Partial sums of A120769.at n=40A120770
- a(n) = ceiling(exp(n)/n).at n=10A132407