5860
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 19
- Digital Root
- 1
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 1
Divisibility
- Divisor Count
- 12
- Divisor Sum
- 12348
- Proper Divisor Sum (Aliquot Sum)
- 6488
- 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
- 2336
- Möbius Function
- 0
- Radical
- 2930
- Omega Function (Ω)
- 4
- 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
- 36
- 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
- Numbers k such that the continued fraction for sqrt(k) has period 54.at n=33A020393
- a(n) = least m such that if r and s in {1/1, 1/3, 1/5, ..., 1/(2n-1)} satisfy r < s, then r < k/m < (k+2)/m < s for some integer k.at n=33A024841
- Numbers k such that the continued fraction for sqrt(k) has even period and if the last term of the periodic part is deleted the central term is 38.at n=37A031536
- (s(n)+1)/9, where s(n)=n-th base 9 palindrome that starts with 8.at n=23A043079
- Numbers k such that 233*2^k-1 is prime.at n=17A050868
- Values of m, the main key or generating number for Pythagorean triangles in which S (the odd short leg) and U (the hypotenuse) are twin primes.at n=26A051891
- Dimension of the space of weight n cuspidal newforms for Gamma_1( 61 ).at n=38A063334
- Numbers n such that sum of digits of n equals the sum of digits of n^3.at n=24A070276
- Main diagonal of table A083087.at n=7A083090
- a(n) = 6*n^2 + 3*n + 1.at n=31A085473
- a(n) = A063416(n)/7.at n=45A088409
- Let f(x)=(largest digit of x)^(smallest digit of x) + x (A097385). Sequence gives numbers n such that f(n) and f(n+1) are both prime.at n=17A097387
- Number of squares on infinite half chessboard at <=n knight moves from a fixed point on the edge.at n=29A098498
- Number of permutations of length n which avoid the patterns 2134, 3421, 4132.at n=9A116833
- Triangle read by rows: T(i,j) for the recurrence T(i,j) = (T(i-1,j) + 1)*i.at n=51A121662
- Sum of squares of four consecutive primes.at n=10A133524
- Indices k such that 6 plus the k-th triangular number is a perfect square.at n=9A154140
- Number of terms with n digits in A154780.at n=18A154779
- Number of binary strings of length n with equal numbers of 00001 and 00011 substrings.at n=13A164193
- Number of partitions of prime(n) into prime parts smaller than itself.at n=20A168470