3524
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
- 2
Divisibility
- Divisor Count
- 6
- Divisor Sum
- 6174
- Proper Divisor Sum (Aliquot Sum)
- 2650
- 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
- 1760
- Möbius Function
- 0
- Radical
- 1762
- 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
- 118
- 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 T3 for Zeolite Code AFR.at n=45A008021
- Coordination sequence T3 for Zeolite Code -CHI.at n=38A009848
- Phi(n) + 5 | sigma(n + 5).at n=39A015784
- Numbers k such that the continued fraction for sqrt(k) has period 46.at n=21A020385
- Pisot sequence P(2,9).at n=5A021001
- Fibonacci sequence beginning 4, 22.at n=12A022385
- Number of binary codes (not necessarily linear) of length n with 3 words.at n=46A034198
- Numerators of continued fraction convergents to sqrt(21).at n=10A041032
- Numbers k such that the string 2,4 occurs in the base 10 representation of k but not of k-1.at n=39A044356
- Numbers k that divide 10^k + 8^k.at n=37A045608
- Partial sums of A045954.at n=40A045964
- Number of asymmetric (identity) trees with n nodes and 4 leaves.at n=24A055335
- T(n,n-4), where T is the array in A055830.at n=23A055831
- A014486-encodings of Catalan mountain ranges with no sea-level valleys, i.e., the rooted plane general trees with root degree = 1.at n=33A057547
- Numbers n such that x^n + x^11 + 2 is irreducible over GF(3).at n=12A058217
- Symmetric totally balanced binary sequences: those terms of A014486 which are equal to their reversed complement.at n=34A061855
- Potential Sierpiński numbers: integers for which the smallest m > 2^10 in A040076 such that n*2^m+1 is prime (A050921).at n=11A064721
- A065829 converted to base 10.at n=11A065830
- First occurrence of exactly n 1's in the binary expansion of sqrt(2).at n=11A084186
- Pseudo-golombization of the Fibonacci-sequence succession of digits. Size of successive chunks is given by the digits of the Fibonacci-sequence themselves. See "pi pseudo-golombization" for problems raised by 0, either as digit in the Fibonacci-sequence or as leading digit in a chunk.at n=15A106538