1133
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 8
- Digital Root
- 8
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 1
Divisibility
- Divisor Count
- 4
- Divisor Sum
- 1248
- Proper Divisor Sum (Aliquot Sum)
- 115
- 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
- 1020
- Möbius Function
- 1
- Radical
- 1133
- 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
- 62
- 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
- Numbers that are the sum of 10 positive 5th powers.at n=47A003355
- a(n) = ceiling(n*phi^7), where phi is the golden ratio, A001622.at n=39A004962
- a(n) = a(n-1) + a(n-6), with a(i) = 1 for i = 0..5.at n=31A005708
- Number of integer partitions of n whose smallest part is equal to the number of parts.at n=60A006141
- Numbers that contain only 1's, 2's and 3's.at n=47A007932
- Some permutation of digits is a cube.at n=44A007939
- Noncubes such that some permutation of digits is a cube.at n=34A007940
- Number of non-Abelian metacyclic groups of order 2^n.at n=32A007982
- Coordination sequence T2 for Zeolite Code AWW.at n=24A008046
- Coordination sequence T2 for Zeolite Code BRE.at n=22A008059
- Coordination sequence T6 for Zeolite Code EUO.at n=21A008101
- Expansion of 1/((1-x)*(1-x^3)*(1-x^5)*(1-x^7)*(1-x^9)).at n=59A008674
- Expansion of e.g.f.: log(1+x)/cos(sin(x)).at n=7A009425
- Number of distinct orders of permutations of n objects; number of nonisomorphic cyclic subgroups of symmetric group S_n.at n=51A009490
- Expansion of 1/(1 - x^6 - x^7 - x^8 - ...).at n=37A017900
- Expansion of 1/(1 - x^13 - x^14 - ...).at n=66A017907
- a(n) is the concatenation of n and 3n.at n=10A019551
- Plaindromes: numbers whose digits in base 3 are in nondecreasing order.at n=32A023745
- a(n) = 1*t(n) + 2*t(n-1) + ... + k*t(n+1-k), where k=floor((n+1)/2) and t is A000201 (lower Wythoff sequence).at n=18A023866
- s(1)t(n) + s(2)t(n-1) + ... + s(k)t(n+1-k), where k = [ (n+1)/2 ], s = A023532, t = (1, p(1), p(2), ...).at n=32A024369