7736
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 23
- Digital Root
- 5
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 4
Divisibility
- Divisor Count
- 8
- Divisor Sum
- 14520
- Proper Divisor Sum (Aliquot Sum)
- 6784
- Abundant Number
- no
- Perfect Number
- no
- Deficient Number
- yes
- Highly Composite
- no
- Weird Number
- no
- Untouchable Number
- no
- Primitive Abundant
- no
Derived Values
- Euler's Totient
- 3864
- Möbius Function
- 0
- Radical
- 1934
- Omega Function (Ω)
- 4
- 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
- no
- Harshad Number
- no
- Narcissistic Number
- no
- Collatz Steps
- 145
- 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
- Number of labeled Eulerian digraphs with n nodes.at n=4A007080
- [ exp(3/7)*n! ].at n=6A030965
- Triangle of number of permutations by barycenter.at n=43A062866
- Triangle of number of permutations by barycenter.at n=45A062866
- Numbers n such that n and 2^n end with the same three digits.at n=7A067866
- Number of partitions of n X n checkerboard by two edgewise-connected sets which produce the maximum n^2-2n+2 frontier edges between the two sets.at n=4A068381
- Centered 13-gonal numbers.at n=34A069126
- Even numbers such that all a(i) + a(j) are distinct.at n=47A080432
- Structured snub dodecahedral numbers.at n=7A100151
- a(n) = (n^3 - 7*n + 12)/6.at n=35A105163
- Numbers of perifusenes with one internal vertex (see Cyvin et al. for precise definition).at n=8A122741
- Composite numbers m that divide A123855(m-1) = Sum_{i=1..m-1} Sum_{j=1..m-1} prime(i)^j.at n=18A123857
- Terms of A123857 that are not powers of 2.at n=7A124238
- Self-convolution of A128318.at n=5A128577
- a(n) = 121*n^2 - n.at n=7A157960
- a(n) = 484*n^2 - 2*n.at n=3A158329
- a(n) = 64*n^2 - 8.at n=10A158487
- Number of binary strings of length n with no substrings equal to 000 or 011.at n=27A164315
- Totally multiplicative sequence with a(p) = a(p-1) + 7 for prime p.at n=25A166704
- Expansion of x*(1+x+x^2) / ( (x-1)*(x^3+x^2-1) ).at n=27A171861