11333
domain: N
Properties
Digital Properties
- Digit Count
- 5
- Digit Sum
- 11
- Digital Root
- 2
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 3
Divisibility
- Divisor Count
- 4
- Divisor Sum
- 12960
- Proper Divisor Sum (Aliquot Sum)
- 1627
- Abundant Number
- no
- Perfect Number
- no
- Deficient Number
- yes
- Weird Number
- no
- Untouchable Number
- no
- Primitive Abundant
- no
Derived Values
- Euler's Totient
- 9708
- Möbius Function
- 1
- Radical
- 11333
- 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
- 130
- 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 k such that sigma(k) = sigma(k+6).at n=28A015866
- Numbers having only digits 1 and 3 in their decimal representation.at n=37A032917
- Coefficients of monic primitive irreducible polynomials over GF(4) listed in lexicographic order.at n=35A058952
- Record-setting n's for the function q(n), the minimum prime q such that n(q+1)-1 is prime p (i.e., q(n) > q(j) for all 0 < j < n).at n=13A060424
- a(n) = Sum_{k=1..n} -mu(k+1) * a(n-k), with a(0)=1.at n=18A073776
- Numbers n with digits in nondecreasing order such that sum of the reciprocal of digits is an integer.at n=23A091784
- Semiprimes (A001358) made of nontrivial runs of identical digits.at n=22A116063
- Number of subpartitions of partition P=[0,0,0,0,1,1,1,1,1,2,2,2,2,2,2,3,...], where P(n) = [(sqrt(8*n+49) - 7)/2].at n=28A121433
- Number of walks within N^3 (the first octant of Z^3) starting at (0,0,0) and consisting of n steps taken from {(-1, 0, 1), (0, 0, 1), (1, -1, 0), (1, 1, -1), (1, 1, 0)}.at n=7A150657
- Squares in lunar arithmetic in base 4 written in base 4.at n=31A171460
- Squares in lunar arithmetic in base 5 written in base 5.at n=43A171564
- Number of strings of numbers x(i=1..8) in 0..n with sum i*x(i)^3 equal to 8*n^3.at n=8A184725
- Numbers of rank 10 in the poset of lunar numbers.at n=51A191752
- List of primitive words over the alphabet {1,3}.at n=28A213970
- Minimal representation (considered minimal in any canonical base b > 3) of n in a binary system with two distinct digits "1" and "3", not allowing zeros, where a digit d in position p (p = 1,2,3,...,n) represents the value d^p.at n=40A237454
- Fixed points of permutations A263265 and A263266.at n=15A263281
- Semiprime numbers whose digit string can be partitioned into three parts such that the product of the first two parts equals the third part.at n=20A280636
- Number of tiles in distance d from a given heptagon in the truncated order-3 tiling of the heptagonal plane (a.k.a. the "hyperbolic soccerball").at n=14A290398
- Numbers that contain exactly one pair of identical digits x and a triple of identical digits y (x not equal y).at n=23A291312
- Lexicographically earliest sequence of distinct terms such that a(n) is divisible by five and only five digits of a(n+1).at n=40A308609