5611
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 13
- Digital Root
- 4
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 2
Divisibility
- Divisor Count
- 4
- Divisor Sum
- 5824
- Proper Divisor Sum (Aliquot Sum)
- 213
- 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
- 5400
- Möbius Function
- 1
- Radical
- 5611
- 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
- 160
- Smith Number
- no
- Vampire 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
- no
- Odd
- yes
Appears in sequences
- Odd-indexed terms of A124296.at n=4A001603
- Pseudoprimes to base 5.at n=11A005936
- a(n) = C(n+2,3) + C(n,3) + C(n-1,3).at n=22A006004
- Row 3 of array in A212801.at n=4A006239
- Powers of fifth root of 11 rounded to nearest integer.at n=18A018145
- Powers of fifth root of 11 rounded up.at n=18A018146
- Pseudoprimes to base 25.at n=49A020153
- Pseudoprimes to base 27.at n=39A020155
- Pseudoprimes to base 29.at n=36A020157
- Pseudoprimes to base 36.at n=37A020164
- Pseudoprimes to base 42.at n=18A020170
- Pseudoprimes to base 46.at n=45A020174
- Pseudoprimes to base 48.at n=33A020176
- Pseudoprimes to base 56.at n=32A020184
- Pseudoprimes to base 59.at n=27A020187
- Pseudoprimes to base 67.at n=41A020195
- Pseudoprimes to base 82.at n=46A020210
- Pseudoprimes to base 99.at n=45A020227
- Strong pseudoprimes to base 5.at n=3A020231
- Strong pseudoprimes to base 25.at n=6A020251