4901
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
- 6
- Divisor Sum
- 5490
- Proper Divisor Sum (Aliquot Sum)
- 589
- 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
- 4368
- Möbius Function
- 0
- Radical
- 377
- Omega Function (Ω)
- 3
- 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
- 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
- Generalized Stirling numbers, [n+2,n]_2.at n=12A001701
- a(n) = (n+1)*(n^2 +8*n +6)/6. Number of n-dimensional partitions of 4. Number of terms in 4th derivative of a function composed with itself n times.at n=28A008778
- Coordination sequence T2 for Zeolite Code RSN.at n=45A009886
- Number of 5-tuples of different integers from [ 2,n ] with no common factors among quadruples.at n=16A015645
- Expansion of 1/(1-x^6-x^7-x^8-x^9-x^10).at n=51A017850
- Pseudoprimes to base 70.at n=27A020198
- Pseudoprimes to base 99.at n=42A020227
- Strong pseudoprimes to base 70.at n=8A020296
- Strong pseudoprimes to base 99.at n=9A020325
- Fibonacci sequence beginning 0, 13.at n=14A022347
- a(n) = n * Fibonacci(n+1).at n=13A023607
- a(n) = least m such that if r and s in {1/4, 1/8, 1/12,..., 1/4n} satisfy r < s, then r < k/m < s for some integer k.at n=39A024825
- a(n) = least m such that if r and s in {1/1, 1/2, 1/3, ..., 1/n} satisfy r < s, then r < k/m < (k+3)/m < s for some integer k.at n=36A024843
- Intermediate edge b of smallest (measured by the longest edge) primitive Euler bricks (a, b, c, sqrt(a^2 + b^2), sqrt(b^2 + c^2), sqrt(a^2 + c^2) are integers).at n=22A031174
- Nonsquarefree k such that Pell equation x^2 - k*y^2 = -1 is soluble.at n=39A031397
- a(n) = (2*n+1)*(12*n+1).at n=14A033576
- a(n) = Fibonacci(n) * Fibonacci(2*n).at n=7A037451
- Denominators of continued fraction convergents to sqrt(278).at n=6A041523
- Values of n^2 + 1 resulting from A050796.at n=38A050800
- 14-gonal (or tetradecagonal) numbers: a(n) = n*(6*n-5).at n=29A051866