4359
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 21
- Digital Root
- 3
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 2
Divisibility
- Divisor Count
- 4
- Divisor Sum
- 5816
- Proper Divisor Sum (Aliquot Sum)
- 1457
- 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
- 2904
- Möbius Function
- 1
- Radical
- 4359
- 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
- 170
- 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
- Coordination sequence T10 for Zeolite Code EUO.at n=41A008096
- Coordination sequence T4 for Zeolite Code SGT.at n=41A008232
- a(n)/1000 gives sqrt(n) to 3 places after the decimal point.at n=18A027662
- 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 44.at n=15A031542
- Numbers k such that the least term in the periodic part of the continued fraction for sqrt(k) is 44.at n=2A031722
- Multiplicity of highest weight (or singular) vectors associated with character chi_13 of Monster module.at n=38A034401
- Base 6 digits are, in order, the first n terms of the periodic sequence with initial period 3,2,1,0.at n=4A037795
- The sequence e when b=[ 1,0,1,1,1,... ].at n=32A042953
- Numbers whose base-4 representation contains exactly three 0's and three 1's.at n=35A045031
- Numbers whose base-5 representation contains exactly three 1's and three 4's.at n=2A045262
- a(n)=T(n,n+2), array T as in A049723.at n=36A049730
- Numbers n such that 93*2^n-1 is prime.at n=21A050572
- a(n) = T(n, n-5), array T as in A055818.at n=8A055822
- Numbers n such that n*6^n - 1 is prime.at n=14A059675
- C(n+3)=2*C(n), where C(n) is Cototient(n) := n - phi(n) (A051953).at n=29A063480
- Sum of the remainders when n^2 is divided by squares less than n.at n=32A067459
- Numbers n such that n and prime(n) end with the same two digits.at n=42A067838
- a(1) = 2; a(n) is smallest number > a(n-1) such that the juxtaposition a(1)a(2)...a(n) is a prime.at n=37A074338
- Lesser of two successive squarefree numbers whose product is not squarefree.at n=40A077395
- Least k > n such that p(n) divides p(k), where p(k) denotes the k-th partition number (A000041).at n=40A079031