1166
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
- 8
- Divisor Sum
- 1944
- Proper Divisor Sum (Aliquot Sum)
- 778
- 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
- 520
- Möbius Function
- -1
- Radical
- 1166
- Omega Function (Ω)
- 3
- 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
- 31
- Smith Number
- no
- Vampire Number
- no
Primality
- Prime
- no
- Composite Number
- yes
- Semiprime
- no
- 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
- yes
- Odd
- no
Appears in sequences
- Heptagonal (or 7-gonal) pyramidal numbers: a(n) = n*(n+1)*(5*n-2)/6.at n=11A002413
- Number of n-step anisotropic spirals on cubic lattice.at n=5A006780
- Number of factors in the infinite word formed by the Kolakoski sequence A000002.at n=38A007782
- Coordination sequence T1 for Zeolite Code MOR.at n=22A008182
- Coordination sequence T7 for Zeolite Code PAU.at n=25A008225
- Coordination sequence T3 for Zeolite Code STI.at n=23A008236
- a(n) is the concatenation of n and 6n.at n=10A009440
- Coordination sequence T7 for Zeolite Code VNI.at n=21A009913
- Expansion of 1/(1-x^5-x^6-x^7-x^8-x^9-x^10-x^11-x^12).at n=34A017843
- First row of spectral array W(e-1).at n=16A022161
- Place where n-th 1 occurs in A023119.at n=29A022781
- Positive numbers k such that k and 5*k are anagrams in base 8 (written in base 8).at n=1A023076
- a(n) = position of 3*n^3 in A003072.at n=14A024970
- Coordination sequence T1 for Zeolite Code MWW.at n=23A024986
- Numbers that are the sum of 3 nonzero squares in exactly 9 ways.at n=18A025329
- Numbers that are the sum of 3 nonzero squares in 9 or more ways.at n=46A025337
- Numbers that are the sum of 3 distinct nonzero squares in exactly 9 ways.at n=9A025347
- Numbers that are the sum of 3 distinct nonzero squares in 9 or more ways.at n=30A025355
- Index of 6^n within the sequence of the numbers of the form 3^i*6^j.at n=37A025713
- Index of 7^n within the sequence of the numbers of the form 5^i*7^j.at n=43A025723