5896
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 28
- Digital Root
- 1
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 2
Divisibility
- Divisor Count
- 16
- Divisor Sum
- 12240
- Proper Divisor Sum (Aliquot Sum)
- 6344
- Abundant Number
- yes
- Perfect Number
- no
- Deficient Number
- no
- Highly Composite
- no
- Weird Number
- no
- Untouchable Number
- no
- Primitive Abundant
- no
Derived Values
- Euler's Totient
- 2640
- Möbius Function
- 0
- Radical
- 1474
- Omega Function (Ω)
- 5
- 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
- 142
- 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
- Narayana's cows sequence: a(0) = a(1) = a(2) = 1; thereafter a(n) = a(n-1) + a(n-3).at n=24A000930
- Bisection of A000930.at n=12A002478
- Tricapped prism numbers.at n=15A005920
- Coordination sequence for alpha-Mn, Position Mn4.at n=20A009953
- Numbers whose set of base-14 digits is {1,2}.at n=27A032934
- (s(n)+1)/9, where s(n)=n-th base 9 palindrome that starts with 8.at n=27A043079
- Rhombic matchstick numbers: a(n) = n*(3*n+2).at n=44A045944
- Pisot sequence P(4,6).at n=19A048625
- Pisot sequence P(6,9).at n=18A048626
- Expansion of (1-x)^2/(1 - 4*x + 3*x^2 - x^3).at n=8A052544
- Dimension of the space of weight n cuspidal newforms for Gamma_1( 89 ).at n=18A063362
- Number of ways to tile a 2 X n room with 1 X 2 Tatami mats. At most 3 Tatami mats may meet at a point.at n=23A068921
- a(n) = a(n-1) + a(n-3) for n >= 3, with a(0) = 1, a(1) = a(2) = 0. This recurrence can also be used to define a(n) for n < 0.at n=27A078012
- Lesser of a,b where n^2 = a^3 + b^3; a,b > 0 and gcd(a,b)=1. The greater of a,b is the corresponding term in A099533 and n, which is used to order this sequence, is the corresponding term in A099426.at n=22A099532
- Numbers which are the sum of two positive cubes and divisible by 11.at n=12A101852
- Sequence A000930 with terms repeated.at n=49A108104
- Sequence A000930 with terms repeated.at n=48A108104
- a(n)= +a(n-3) +2*a(n-6) +a(n-9).at n=39A109531
- a(n)= +a(n-3) +2*a(n-6) +a(n-9).at n=37A109531
- a(n)= +a(n-3) +2*a(n-6) +a(n-9).at n=34A109532