4289
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 23
- Digital Root
- 5
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 3
Divisibility
- Divisor Count
- 2
- Divisor Sum
- 4290
- Proper Divisor Sum (Aliquot Sum)
- 1
- 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
- 4288
- Möbius Function
- -1
- Radical
- 4289
- Omega Function (Ω)
- 1
- Little Omega Function (ω)
- 1
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
- 77
- Smith Number
- no
- Vampire Number
- no
Primality
- Prime
- yes
- Composite Number
- no
- Semiprime
- no
- Squarefree Number
- yes
- Prime Power
- yes
- Prime Factorization
- no
- Twin Prime
- no
- Mersenne Prime
- no
- Sophie Germain Prime
- no
- Safe Prime
- no
- Powerful Number
- no
- Achilles Number
- no
- Prime Index
- 589
- Perfect Power
- no
- Smooth Number
- no
- Carmichael Number
- no
Classification
- Even
- no
- Odd
- yes
Appears in sequences
- Smallest nonnegative number that is the sum of 3 squares in exactly n ways.at n=28A000437
- Smallest number that is the sum of 3 squares in at least n ways.at n=28A000451
- Primes p such that the multiplicative order of 2 modulo p is (p-1)/4.at n=29A001134
- Primes of the form k^2 - k - 1.at n=36A002327
- Numbers that are the sum of 5 positive 6th powers.at n=24A003361
- Number of trees by stability index.at n=17A003428
- Coefficients of the '2nd-order' mock theta function A(q).at n=30A006304
- Coordination sequence T2 for Banalsite.at n=39A008250
- Triangle of numbers associated with Genocchi numbers.at n=30A014780
- Triangle of numbers associated with Genocchi numbers.at n=22A014782
- Triangle of numbers associated with Genocchi numbers.at n=12A014783
- Coordination sequence T2 for Zeolite Code TER.at n=44A016434
- Numbers k such that the continued fraction for sqrt(k) has period 47.at n=7A020386
- a(n) = 5th Fibonacci polynomial evaluated at 2^n.at n=3A020531
- a(n) is the smallest number that is the sum of 3 nonzero squares in exactly n ways.at n=27A025414
- Least sum of 3 distinct nonzero squares in exactly n ways.at n=26A025415
- Expansion of Product_{m>=1} ((1+q^(2*m-1))/(1+q^(2*m)))^6.at n=18A029843
- Palindromic primes in base 4.at n=16A029972
- Palindromic primes in base 8.at n=17A029976
- Number of ways to partition n elements into pie slices of different odd sizes.at n=55A032154