5027
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 14
- Digital Root
- 5
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 1
Divisibility
- Divisor Count
- 4
- Divisor Sum
- 5496
- Proper Divisor Sum (Aliquot Sum)
- 469
- 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
- 4560
- Möbius Function
- 1
- Radical
- 5027
- 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
- 134
- 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
- Convolution of Fibonacci numbers and primes.at n=13A023615
- [ 4th elementary symmetric function of {sqrt(k)} ], k = 1,2,...,n.at n=6A025195
- 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 69.at n=27A031567
- G.f. satisfies A(x) = 1 + x*cycle_index(G,A(x)) where G = cyclic group of order 43 generated by (1,2,...,43).at n=5A036738
- Numbers n such that 211*2^n-1 is prime.at n=11A050857
- Expansion of (1+x^4*C^2)*C^2, where C = (1-(1-4*x)^(1/2))/(2*x) is g.f. for Catalan numbers, A000108.at n=8A071747
- a(n) = Pi * n^2 rounded off.at n=40A075726
- Numbers k such that A068340(k)=+/-3.at n=2A077031
- Least positive integer that can be represented as sum of semiprime and a triangular number in exactly n ways. Triangular numbers include t(0)=0 and (1)=1.at n=42A100591
- a(n) = 4*a(n-1) + 3*a(n-2), a(0) = 1, a(1) = 2.at n=6A108851
- Numbers n such that every digit occurs at least once in n^3.at n=8A119735
- Ceiling(Pi*n^2).at n=40A135039
- Ceiling(4*Pi*n^2).at n=19A135971
- Numbers k such that k and k^2 use only the digits 0, 2, 5, 7 and 9.at n=18A136917
- Partial sums of A003325.at n=25A139211
- Number of permutation symbols of type r(n) for hyperbolic archimedean tessellations of rank n.at n=13A142867
- A bisection of A142867.at n=6A142875
- Number of walks within N^3 (the first octant of Z^3) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, 1), (-1, 1, -1), (0, 0, 1), (1, 0, -1)}.at n=11A148001
- Number of permutations of 1..n avoiding adjacent step pattern up, up, up, up, up.at n=7A177533
- Numbers k that 4^k + 13^2 is prime.at n=26A178653