4430
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 11
- Digital Root
- 2
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 1
Divisibility
- Divisor Count
- 8
- Divisor Sum
- 7992
- Proper Divisor Sum (Aliquot Sum)
- 3562
- 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
- 1768
- Möbius Function
- -1
- Radical
- 4430
- Omega Function (Ω)
- 3
- Little Omega Function (ω)
- 3
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
- 121
- 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
- Coordination sequence T4 for Zeolite Code -CHI.at n=42A009849
- Coordination sequence T2 for Zeolite Code iRON.at n=46A009882
- Coordination sequence T1 for Zeolite Code RSN.at n=43A009885
- Coordination sequence T3 for Zeolite Code RSN.at n=43A009887
- Coordination sequence T3 for Zeolite Code RTH.at n=46A009895
- Rectilinear crossing number of complete graph on n nodes.at n=24A014540
- Number of ordered quadruples of integers from [ 1..n ] with no global factor.at n=16A015634
- Expansion of 1/(1-x^7-x^8-x^9-x^10-x^11-x^12-x^13-x^14).at n=51A017863
- Numbers k such that prime(k+3)-(k+3)*tau(k+3) = prime(k)-k*tau(k) where tau(k) = A000005(k) is the number of divisors of k.at n=32A067356
- Trajectory of n under the Reverse and Add! operation carried out in base 3 (presumably) does not reach a palindrome and (presumably) does not join the trajectory of any term m < n.at n=11A077405
- a(n) = number of partitions of n wherein the sum of the 1's is no more than the sum of the other parts.at n=28A083690
- Numbers n such that 5^n+4^(n-1) is prime.at n=8A093793
- Indices of primes in sequence defined by A(0) = 79, A(k) = 10*A(k-1) - 81 for k > 0.at n=24A101130
- Triangle read by rows: T(n,k) is the number of ordered trees with n edges and having k branches of odd length (n>=0, 0<=k<=n).at n=59A102003
- Sum of the sides of ordered 2 prime sided prime triangles.at n=43A105092
- Indices of prime Perrin numbers; values of n such that A001608(n) is prime.at n=24A112881
- a(n) = sum of the first n primes which are coprime to n.at n=44A125902
- a(0) = 1. a(n+1) = sum{k=0 to n} a(n-k)*a(ceiling(k/2)).at n=12A127681
- Positions of 17 after decimal point in decimal expansion of Pi.at n=44A134217
- Number of walks within N^2 (the first quadrant of Z^2) starting at (0,0) and consisting of n steps taken from {(-1, -1), (-1, 1), (-1, 0), (0, 1), (1, -1), (1, 1)}.at n=6A151310