11074
domain: N
Properties
Digital Properties
- Digit Count
- 5
- Digit Sum
- 13
- Digital Root
- 4
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 1
Divisibility
- Divisor Count
- 12
- Divisor Sum
- 19494
- Proper Divisor Sum (Aliquot Sum)
- 8420
- Abundant Number
- no
- Perfect Number
- no
- Deficient Number
- yes
- Weird Number
- no
- Untouchable Number
- no
- Primitive Abundant
- no
Derived Values
- Euler's Totient
- 4704
- Möbius Function
- 0
- Radical
- 1582
- Omega Function (Ω)
- 4
- 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
- 68
- 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
- a(n) = floor( binomial(n,7)/7 ).at n=20A011853
- Numbers whose set of base-15 digits is {3,4}.at n=19A032839
- Numbers k such that Euler phi(k) / Carmichael lambda(k) = 14.at n=24A066696
- a(n) = (n+1)*(n+2)^2*(n+3)*(11*n^3 + 58*n^2 + 101*n + 60)/720.at n=5A108646
- Write 0, 1, ..., n in base 3 and add as if they were decimal numbers.at n=34A121718
- Indices n such that A134204(n) < n.at n=17A133242
- Number of distinct values taken by r^r^...^r where r=1/2 (with n r's and parentheses inserted in all possible ways).at n=12A196244
- G.f.: q-sinh(x) evaluated at q=-x.at n=36A198202
- a(n) = 1/7*( binomial(n,7) - floor(n/7) ).at n=12A215053
- Number of (n+4) X 9 0..1 matrices with each 5 X 5 subblock idempotent.at n=11A224687
- Fixed points of permutations A256210 and A256371.at n=15A256372
- Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 555", based on the 5-celled von Neumann neighborhood.at n=21A272922
- Numbers missing from A317415.at n=6A317417
- Number of integer partitions of n whose product is divisible by the sum of primes of their parts.at n=46A330954
- Number of integer partitions of n whose length is twice their alternating sum.at n=53A357709
- Numbers k that are neither primes nor squares of primes such that A006134(k) - A102283(k) is divisible by k.at n=34A373763
- a(n) is the number of 4 element sets of integer sided trapezoids with distinct areas and base angles that are 60 degrees, which fill an equilateral triangular grid of side n units.at n=38A389518