1167
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 15
- Digital Root
- 6
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 2
Divisibility
- Divisor Count
- 4
- Divisor Sum
- 1560
- Proper Divisor Sum (Aliquot Sum)
- 393
- 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
- 776
- Möbius Function
- 1
- Radical
- 1167
- Omega Function (Ω)
- 2
- 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
- 31
- Smith Number
- no
- Vampire Number
- no
Primality
- Prime
- no
- Composite Number
- yes
- Semiprime
- yes
- 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
- no
- Odd
- yes
Appears in sequences
- a(n) = number of compositions of n in which the maximum part size is 4.at n=13A000102
- Number of nonnegative solutions to x^2 + y^2 <= n^2.at n=38A000603
- Absolute value of Glaisher's beta'(2n+1).at n=33A002291
- a(n) = floor((7*2^(n+1)-9*n-10)/3).at n=8A005262
- a(n) = a(n-2) + a(n-3), with a(0) = 0, a(1) = 1, a(2) = 2.at n=26A007307
- Patterns in a dual ring.at n=10A007574
- Molien series for 4-dimensional complex reflection group of order 7680 (in powers of x^4).at n=54A008669
- Expansion of (1+x^12)/((1-x)*(1-x^2)*(1-x^3)*(1-x^4)).at n=44A008773
- Coordination sequence T3 for Zeolite Code -CLO.at n=30A009852
- Coordination sequence T1 for Zeolite Code DFO.at n=26A009875
- Coordination sequence T2 for Zeolite Code DFO.at n=26A009876
- Number of 5-tuples of different integers from [ 1,n ] with no common factors among quadruples.at n=12A015644
- Expansion of 1/(1-x^9-x^10-x^11-x^12-x^13-x^14-x^15-x^16-x^17).at n=54A017884
- Number of elements in the set {(x,y): 1 <= x,y <= n, gcd(x,y)=1}.at n=42A018805
- n-th composite is sum of first k composites for some k.at n=34A020642
- a(n) = s(1)t(n) + s(2)t(n-1) + ... + s(k)t(n+1-k), where k = [ (n+1)/2 ], s = (composite numbers), t = (primes).at n=11A024604
- Index of 5^n within the sequence of the numbers of the form 5^i*7^j.at n=52A025708
- Least term in period of continued fraction for sqrt(n) is 5.at n=7A031429
- Numbers k such that the continued fraction for sqrt(k) has even period and if the last term of the periodic part is deleted the central term is 11.at n=15A031509
- Lucky numbers with size of gaps equal to 12 (lower terms).at n=11A031894