4329
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 18
- Digital Root
- 9
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 3
Divisibility
- Divisor Count
- 12
- Divisor Sum
- 6916
- Proper Divisor Sum (Aliquot Sum)
- 2587
- 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
- 2592
- Möbius Function
- 0
- Radical
- 1443
- Omega Function (Ω)
- 4
- 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
- 51
- 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
- no
- Odd
- yes
Appears in sequences
- Numbers k that divide s(k), where s(1)=1, s(j)=9*s(j-1)+j.at n=26A014857
- Pseudoprimes to base 73.at n=44A020201
- a(n) = [ (3rd elementary symmetric function of P(n))/(first elementary symmetric function of P(n)) ], where P(n) = {first n+2 primes}.at n=9A024453
- dot product (n,n-1,...2,1).(3,4,...,n,1,2).at n=24A026054
- Divisors of 999999.at n=44A027892
- Dirichlet convolution of b_n=2^(n-1) with Fibonacci numbers.at n=12A034734
- Base 6 digits are, in order, the first n terms of the periodic sequence with initial period 3,2,0,1.at n=4A037788
- Denominators of continued fraction convergents to sqrt(40).at n=5A041067
- Denominators of continued fraction convergents to sqrt(160).at n=11A041295
- Denominators of continued fraction convergents to sqrt(640).at n=9A042229
- Denominators of continued fraction convergents to sqrt(1000).at n=9A042937
- Sum of remainders when n-th prime is divided by all preceding integers.at n=36A050482
- a(n) = 2^n + Fibonacci(n+1).at n=12A052956
- Number of rooted trees with n nodes and 3 leaves.at n=19A055278
- Number of 4-block ordered tricoverings of an unlabeled n-set.at n=25A060488
- Positive numbers whose product of digits is 12 times their sum.at n=40A062045
- Dimension of the space of weight n cuspidal newforms for Gamma_1( 100 ).at n=27A063373
- 9 times octagonal numbers: a(n) = 9*n*(3*n-2).at n=13A064201
- a(n) = 3*n^2 + 6*n.at n=37A067725
- Numbers k such that the sum of p^2, where p are the prime divisors of k, divides the sum of d^2, where d are the divisors of k.at n=45A070224