11482
domain: N
Properties
Digital Properties
- Digit Count
- 5
- Digit Sum
- 16
- Digital Root
- 7
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 3
Divisibility
- Divisor Count
- 4
- Divisor Sum
- 17226
- Proper Divisor Sum (Aliquot Sum)
- 5744
- Abundant Number
- no
- Perfect Number
- no
- Deficient Number
- yes
- Weird Number
- no
- Untouchable Number
- no
- Primitive Abundant
- no
Derived Values
- Euler's Totient
- 5740
- Möbius Function
- 1
- Radical
- 11482
- 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
- yes
- Harshad Number
- no
- Narcissistic Number
- no
- Collatz Steps
- 81
- 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
- yes
- Odd
- no
Appears in sequences
- Numbers k such that the continued fraction for sqrt(k) has period 77.at n=13A020416
- a(n) is twice the smallest k such that A051686(k) = prime(n).at n=41A051692
- Twice the positions in A051686 at which new primes appear in that sequence.at n=38A051861
- a(n) = 2*a(n-1) + a(n-2), with a(0) = 1, a(1) = 2, a(2) = 4.at n=11A052542
- Numbers k such that the period of the continued fraction for sqrt(2)*k (A064848) is 2.at n=43A065029
- Numbers which retain their position in A073666 (position not disturbed by the rearrangement).at n=44A073667
- Numbers k such that 2*k^2 - 4 is a square.at n=5A075870
- Series ratios converge alternately to sqrt(2) and 1+sqrt(1/2).at n=22A082766
- a(n) = (a(n-1) mod 2)*a(n-1) + a(n-2) with a(0)=0, a(1)=1.at n=33A097564
- Sylvester dividends for Pell numbers.at n=21A105606
- Number of partitions of n such that all parts, with the possible exception of the smallest, appear only once.at n=45A115029
- Numerators of "Farey fraction" approximations to sqrt(2).at n=23A119016
- Expansion of -2*x*(-8-12*x+9*x^2) / ( (x-1)*(3*x-1)*(3*x+1)*(1+x) ).at n=7A120468
- Fixed-j dispersion for Q = 8: Square array D(g,h) (g, h >= 1), read by ascending antidiagonals.at n=26A120860
- Numerators of principal and intermediate convergents to 2^(1/2).at n=20A143607
- Numerators of the upper principal and intermediate convergents to 2^(1/2).at n=10A143609
- 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, -1, 0), (-1, 1, 0), (1, 0, -1), (1, 0, 0), (1, 1, 1)}.at n=7A150781
- Numerators of fractions in a 'zero-transform' approximation of sqrt(2) by means of a(n) = (a(n-1) + c)/(a(n-1) + 1) with c=2 and a(1)=0.at n=11A163271
- Number of permutations of 4 copies of 1..n with all adjacent differences <= 1 in absolute value.at n=4A177298
- Number of permutations of n copies of 1..4 with all adjacent differences <= 1 in absolute value.at n=4A177316