14523
domain: N
Properties
Digital Properties
- Digit Count
- 5
- Digit Sum
- 15
- Digital Root
- 6
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 2
Divisibility
- Divisor Count
- 8
- Divisor Sum
- 19968
- Proper Divisor Sum (Aliquot Sum)
- 5445
- Abundant Number
- no
- Perfect Number
- no
- Deficient Number
- yes
- Weird Number
- no
- Untouchable Number
- no
- Primitive Abundant
- no
Derived Values
- Euler's Totient
- 9384
- Möbius Function
- -1
- Radical
- 14523
- 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
- 71
- 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
- no
- Odd
- yes
Appears in sequences
- Positive numbers k such that k and 3*k are anagrams in base 6 (written in base 6).at n=15A023065
- Sum of [ S(n,m)/C(n-1,m-1) ] for m = 1,2,...,n; S(n,m) are Stirling numbers of second kind.at n=11A024423
- Number of partitions satisfying (cn(0,5) <= cn(2,5) and cn(0,5) <= cn(3,5) and cn(0,5) <= cn(1,5) and cn(0,5) <= cn(4,5)).at n=38A036801
- Numbers n such that n | 12^n + 11^n + 10^n + 9^n + 8^n + 7^n + 6^n + 5^n + 4^n + 3^n.at n=43A057289
- Integers n > 10563 such that the 'Reverse and Add!' trajectory of n joins the trajectory of 10563.at n=4A063064
- Numbers with 5 distinct digits {1,2,3,4,5} such that all adjacent digits (as well as first and last digits) are coprime.at n=8A104972
- Floor(n^2*exp(n)).at n=5A132412
- Permutations of 12345: Numbers having each of the decimal digits 1,...,5 exactly once, and no other digit.at n=16A178475
- Smallest missing number in first 10^n digits after the decimal point in the expansion of Pi.at n=5A228988
- Triangle read by rows, T(n,k) = Sum_{j=0..k-1} S(n,j+1)*S(n,k-j) where S denotes the Stirling cycle numbers A132393, T(0,0)=1, n>=0, 0<=k<=2n-1.at n=38A254882
- List of André permutations of the second kind.at n=12A278983
- Convolution of A000081 and A027852, shifted by 3 leading zeros.at n=10A280788
- Number of integer partitions of n whose multiplicities cover an initial interval of positive integers.at n=42A317081
- a(n) is the number of integer partitions of n for which the smallest part is equal to the index of the seaweed algebra formed by the integer partition paired with its weight.at n=51A318196
- Table read by antidiagonals where A(n,k) is the number of n X k aperiodic binary toroidal necklaces.at n=30A323861
- Table read by antidiagonals where A(n,k) is the number of n X k aperiodic binary toroidal necklaces.at n=33A323861
- a(n) = 4*p(n-1)*p(n+1) - p(n)^2, where p(k) = k-th prime.at n=18A327447
- Numbers k such that there are exactly four biquadratefree powerful numbers (A338325) between k^2 and (k+1)^2.at n=11A338391
- Irregular triangle read by rows. Coefficients of the polynomials (-1)^n*binomial(-x - 1, -x - n - 1) * binomial(n + x, x) * (n!)^2 in ascending order of powers.at n=31A358501
- a(n) is the number of triangular partitions whose Young diagram fits inside a square of side n.at n=26A368638