11426
domain: N
Properties
Digital Properties
- Digit Count
- 5
- Digit Sum
- 14
- Digital Root
- 5
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 3
Divisibility
- Divisor Count
- 8
- Divisor Sum
- 17820
- Proper Divisor Sum (Aliquot Sum)
- 6394
- Abundant Number
- no
- Perfect Number
- no
- Deficient Number
- yes
- Weird Number
- no
- Untouchable Number
- no
- Primitive Abundant
- no
Derived Values
- Euler's Totient
- 5488
- Möbius Function
- -1
- Radical
- 11426
- Omega Function (Ω)
- 3
- 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
- 174
- Smith Number
- no
- Vampire Number
- no
Primality
- Prime
- no
- Composite Number
- yes
- Semiprime
- no
- 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
- Coordination sequence for root lattice B_3.at n=24A022145
- Number of basis partitions of n+64 with Durfee square size 8.at n=23A069251
- Number of ways to arrange integers 1...n so that the sum of each adjacent pair is a triangular number, not counting reversals.at n=23A116980
- Number of geodesics between a pair of perfect states in the Tower of Hanoi with 4 pegs and n disks.at n=8A143807
- 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, 1, 0), (0, 1, 1), (1, -1, 1), (1, 1, -1)}.at n=7A150643
- 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), (0, 1, -1), (0, 1, 1), (1, 0, 1), (1, 1, -1)}.at n=7A150756
- a(n) = A159068(n)/n.at n=15A159069
- Potential magic constants of a 10 X 10 magic square composed of consecutive primes.at n=10A192087
- Numbers n such that the smallest prime divisor of n^2+1 is 89.at n=42A248551
- Bernoulli number B_{n} has denominator 354.at n=26A255684
- a(n) is the prime index of A191304(n+1).at n=14A291153
- Numbers k such that (197*10^k - 11)/3 is prime.at n=18A294378
- Expansion of Sum_{k>=0} x^(k^2) * Product_{j=1..k} (1 + x^j)^j.at n=60A306911
- Numbers missing from A317416.at n=17A317418
- G.f.: 1/(1-x)^3 * Product_{k>=1} (1 + x^k).at n=21A325951
- Number of electrons per shell in element Z=n expressed as a 32-bit unsigned integer.at n=32A333662