4136
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
- 3
Divisibility
- Divisor Count
- 16
- Divisor Sum
- 8640
- Proper Divisor Sum (Aliquot Sum)
- 4504
- Abundant Number
- yes
- Perfect Number
- no
- Deficient Number
- no
- Highly Composite
- no
- Weird Number
- no
- Untouchable Number
- no
- Primitive Abundant
- no
Derived Values
- Euler's Totient
- 1840
- Möbius Function
- 0
- Radical
- 1034
- Omega Function (Ω)
- 5
- 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
- 126
- 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
- yes
- Odd
- no
Appears in sequences
- Coordination sequence T2 for Zeolite Code EPI.at n=40A008091
- Coordination sequence T6 for Zeolite Code MTT.at n=40A008194
- Coordination sequence T4 for Zeolite Code PAU.at n=47A008222
- Coordination sequence T1 for Zeolite Code iRON.at n=45A009881
- Numbers whose base-4 representation has 4 more 0's than 3's.at n=36A031465
- Multiplicity of highest weight (or singular) vectors associated with character chi_151 of Monster module.at n=37A034539
- Numbers having three 0's in base 8.at n=18A043423
- Numbers whose base-16 representation has exactly 4 runs.at n=22A043677
- Numbers whose base-4 representation contains exactly four 0's and one 1.at n=27A045034
- Numbers whose base-4 representation contains exactly four 0's and two 2's.at n=7A045059
- Numbers whose base-4 representation contains exactly four 0's and no 3's.at n=33A045081
- Numbers k > 1 such that, in base 3, k and k^2 contain the same digits in the same proportion.at n=34A061657
- At stage 1, start with a unit equilateral equiangular triangle. At each successive stage add 3*(n-1) new triangles around outside with edge-to-edge contacts. Sequence gives number of triangles (regardless of size) at n-th stage.at n=20A064412
- Nonprimes k such that k divides prime(k)^2 - 1.at n=44A064938
- Numbers n such that n and 2^n end with the same two digits.at n=41A067865
- Moebius transform of A064987, n*sigma(n).at n=47A069097
- G.f. satisfies: A(x) = A(x^2) + x*A(x^2)^2.at n=57A073711
- Self-convolution of A073711.at n=28A073712
- Final term of n-th group in A075383.at n=43A075385
- Non-balanced numbers in A015769.at n=33A077803