11475
domain: N
Properties
Digital Properties
- Digit Count
- 5
- Digit Sum
- 18
- Digital Root
- 9
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 2
Divisibility
- Divisor Count
- 24
- Divisor Sum
- 22320
- Proper Divisor Sum (Aliquot Sum)
- 10845
- Abundant Number
- no
- Perfect Number
- no
- Deficient Number
- yes
- Weird Number
- no
- Untouchable Number
- no
- Primitive Abundant
- no
Derived Values
- Euler's Totient
- 5760
- Möbius Function
- 0
- Radical
- 255
- Omega Function (Ω)
- 6
- 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
- 112
- 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
- no
- Odd
- yes
Appears in sequences
- Degrees of irreducible representations of Held group He.at n=23A003912
- Degrees of irreducible representations of Held group He.at n=22A003912
- Indices of last windows of trapezoidal maps.at n=14A007873
- Coordination sequence for sigma-CrFe, Position Xd.at n=27A009959
- (s(n)+s(n+1))/6, where s()=A006521.at n=17A016059
- Square of lower triangular normalized 2nd kind Stirling matrix.at n=19A027495
- Second diagonal of A027495.at n=4A027499
- Minimum area rectangle into which squares of sizes 1, 2, 3, ... n can be packed.at n=31A038666
- Odd numbers divisible by exactly 6 primes (counted with multiplicity).at n=38A046319
- T(n,n+1), array T given by A047010.at n=8A047016
- Column 4 of triangle A055898.at n=7A055900
- McKay-Thompson series of class 30F for Monster.at n=34A058617
- Numbers n such that phi(n) + phi(n+1) = sigma(n)/2.at n=12A076647
- a(n) is the number of terms in the expansion of (x+y-z)*(x^2+y^2-z^2)*(x^3+y^3-z^3)*...*(x^n+y^n-z^n).at n=16A086817
- Triangle read by rows: a(n,k) = C(n,k)*(2^(n-k) - 1) for k<n, a(n,k) = 0 for k >= n, where k=0..max(n-1,0).at n=48A091913
- Inverse modulo 2 binomial transform of 2^n.at n=15A100735
- Inverse modulo 2 binomial transform of 2^n.at n=14A100735
- Inverse modulo 2 binomial transform of 4^n.at n=7A100737
- Inverse modulo 2 binomial transform of (-2)^n.at n=14A100744
- Integers that are Rhonda numbers to base 14.at n=0A100972