5433
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 15
- Digital Root
- 6
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 2
Divisibility
- Divisor Count
- 4
- Divisor Sum
- 7248
- Proper Divisor Sum (Aliquot Sum)
- 1815
- 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
- 3620
- Möbius Function
- 1
- Radical
- 5433
- 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
- Coordination sequence T1 for Zeolite Code NES.at n=47A008205
- Number of ordered triples of integers from [ 1,n ] with no common factors between pairs.at n=47A015632
- Numbers k such that the continued fraction for sqrt(k) has period 56.at n=20A020395
- n written in fractional base 6/5.at n=21A024638
- 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 48.at n=25A031546
- Lucky numbers with size of gaps equal to 16 (lower terms).at n=18A031898
- Wiener number of n-hexagonal triangle.at n=5A033544
- Number of orbits of the group of units of Z/(n) acting naturally on the 4-subsets of Z/(n).at n=32A063381
- Numbers k such that (35*10^(k-1) - 53)/9 is a plateau prime.at n=9A082709
- Largest odd number in the reverse concatenation of the first n consecutive odd numbers when that concatenation is prime.at n=4A089922
- a(n) = Sum_{k=1..n} k*d(k) where d(k) is the number of divisors of k.at n=47A143127
- a(n) = 14*n^3 - 30*n^2 + 24*n - 7.at n=7A155883
- Numbers n with property that 4 n^2 are squares arising in A158470.at n=18A158517
- Values of the genus g for which there exists a compact Riemann surface of genus g admitting an automorphism group of order 84(g-1), the maximum possible, also known as the Hurwitz bound.at n=23A179982
- Triangle read by rows: T(n,k) is the number of weighted lattice paths in L_n having k (1,0)-steps of weight 2 at level 0. The members of L_n are paths of weight n that start at (0,0) , end on the horizontal axis and whose steps are of the following four kinds: an (1,0)-step with weight 1, an (1,0)-step with weight 2, a (1,1)-step with weight 2, and a (1,-1)-step with weight 1. The weight of a path is the sum of the weights of its steps.at n=51A182891
- Numbers k such that tau(k-1) = (tau(k))^2 = tau(k+1), where tau(k) = A000005(k) (number of divisors of k).at n=17A190266
- a(n) = -2*a(n-1) + a(n-2) + a(n-3) with a(0)=a(1)=-1, a(2)=1.at n=12A215112
- Number of (n+1)X(n+1) 0..2 arrays with the upper median of every 2X2 subblock equal.at n=1A237300
- Number of (n+1)X(2+1) 0..2 arrays with the upper median of every 2X2 subblock equal.at n=1A237302
- T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with the upper median of every 2X2 subblock equal.at n=4A237308