4311
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 9
- Digital Root
- 9
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 2
Divisibility
- Divisor Count
- 6
- Divisor Sum
- 6240
- Proper Divisor Sum (Aliquot Sum)
- 1929
- 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
- 2868
- Möbius Function
- 0
- Radical
- 1437
- 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
- yes
- Narcissistic Number
- no
- Collatz Steps
- 170
- 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
- Coordination sequence T3 for Zeolite Code PAU.at n=48A008221
- n is equal to the number of 1's in all numbers <= n written in base 6.at n=14A014890
- Number of 5-tuples of different integers from [ 1,n ] with no global factor.at n=15A015640
- Number of 5-tuples of different integers from [ 2,n ] with no global factor.at n=15A015641
- Powers of fifth root of 5 rounded down.at n=26A018126
- Numbers k such that Fibonacci(k) == 34 (mod k).at n=36A023180
- Size of lexicographic code of length n, Hamming distance 6 and weight 6.at n=36A031504
- Numbers with exactly five distinct base-8 digits.at n=23A031985
- Decimal part of a(n)^(1/11) starts with n (11th powers excluded).at n=14A034066
- a(0)=2; a(n) is the smallest k > a(n-1) such that the fractional part of k^(1/11) starts with n.at n=14A034076
- Coordination sequence T1 for Zeolite Code AWO.at n=45A038406
- Numbers k such that 3*2^k - 7 is prime.at n=29A059747
- Convolution triangle for Lucas numbers A000032(n+1), n >= 0.at n=50A060922
- Bisection of Lucas triangle A060922: even-indexed members of column sequences of A060922 (not counting leading zeros).at n=33A060923
- Fifth convolution of Lucas numbers A000032(n+1), n >= 0.at n=4A060932
- Number of digits in n-th term of A061482.at n=15A061902
- Numbers k such that sigma(k-3) + sigma(k+3) = sigma(2*k).at n=12A067129
- Numbers n such that phi(3n-1) = sigma(n).at n=32A067232
- Numbers n such that sigma(n)=phi(n*bigomega(n)-1).at n=16A067877
- a(n) = floor(Product_{i=1..n} log(prime(i+1))/log(i+1)).at n=22A089223