5914
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
- 2
Divisibility
- Divisor Count
- 4
- Divisor Sum
- 8874
- Proper Divisor Sum (Aliquot Sum)
- 2960
- 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
- 2956
- Möbius Function
- 1
- Radical
- 5914
- 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
- no
- Harshad Number
- no
- Narcissistic Number
- no
- Collatz Steps
- 23
- 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
- Number of planar partitions of n decreasing across rows.at n=19A003293
- Left factorials: !n = Sum_{k=0..n-1} k!.at n=8A003422
- Coordination sequence T5 for Zeolite Code NON.at n=46A008216
- Numbers k such that the continued fraction for sqrt(k) has period 57.at n=6A020396
- Numbers k such that the continued fraction for sqrt(k) has odd period and if the last term of the periodic part is deleted then there are a pair of central terms both equal to 8.at n=9A031421
- Number of series-reduced dyslexic planted planar trees with n leaves of 2 colors where any 2 subtrees extending from the same node are different.at n=8A032068
- Multiplicity of highest weight (or singular) vectors associated with character chi_176 of Monster module.at n=37A034564
- Positive numbers having the same set of digits in base 6 and base 8.at n=36A037435
- Triangle generated by Pascal's rule, except begin and end the n-th row with n!.at n=34A074911
- Triangle generated by Pascal's rule, except begin and end the n-th row with n!.at n=29A074911
- Sod_4 - sod_3 + sod_2 - sod_1, where sod_k is the sum of k-th powers of digits of n.at n=29A076160
- Triangle read by rows: T(n,k) is the number of deco polyominoes of height n having k cells in the first two columns (n>=1, k>=1). A deco polyomino is a directed column-convex polyomino in which the height, measured along the diagonal, is attained only in the last column.at n=50A121583
- Largest number k for which the n-th prime is the median of the largest prime dividing the first k integers.at n=32A126283
- Rectangular table, read by antidiagonals, defined by the following rule: start with all 1's in row zero; from then on, row n+1 equals the partial sums of row n excluding terms in columns k = m*(m+1)/2 (m>=1).at n=37A127054
- Triangle read by rows, T(n,k) = Sum_{j=k..n} j!, 0 <= k <= n.at n=28A143122
- a(n) = 169*n - 1.at n=34A158219
- Pasquale's sequence: a(n) = 2a(n-1) + (-1)^n*floor(n/2), with a(1)=1.at n=12A177143
- Triangle read by rows: T(n,k) is the number of permutations of {1,2,...,n} having k as the last entry in the first block (1<=k<=n).at n=35A177263
- Triangle read by rows: T(n,k) is the number of permutations of {1,2,...,n} having k as the first entry in the last block (1<=k<=n).at n=28A177264
- Expansion of ( 5-9*x^2-2*x^3 ) / ( (1+x-x^2)*(1-x-x^2-x^3) ).at n=14A190914