14079
domain: N
Properties
Digital Properties
- Digit Count
- 5
- Digit Sum
- 21
- Digital Root
- 3
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 1
Divisibility
- Divisor Count
- 12
- Divisor Sum
- 21336
- Proper Divisor Sum (Aliquot Sum)
- 7257
- Abundant Number
- no
- Perfect Number
- no
- Deficient Number
- yes
- Weird Number
- no
- Untouchable Number
- no
- Primitive Abundant
- no
Derived Values
- Euler's Totient
- 8208
- Möbius Function
- 0
- Radical
- 741
- 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
- 81
- 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
- no
- Odd
- yes
Appears in sequences
- Number of paraffins.at n=37A005997
- Sums of 12 distinct powers of 2.at n=27A038463
- Coefficients in the series (1 + x - x^4 - x^6 - x^8 - x^9 - x^10 - x^12 - x^14 ...)/(1 - x^2 - x^3 - x^5 - x^7 - x^11 - x^13 ...).at n=27A058354
- a(n) = n^2*(2*n+1).at n=19A099721
- Numbers k such that 3*10^k + 8*R_k - 7 is a prime, where R_k = 11...1 is the repunit (A002275) of length k.at n=17A102978
- Number of permutations of length n which avoid the patterns 1234, 2341, 4312.at n=11A116750
- Expansion of g.f.: -x*(1 - 2*x + 6*x^2 - 2*x^3 + x^4)/((1-x)^3*(1+x)^4).at n=37A122576
- a(n) = n*floor(n/2)^2.at n=39A122656
- Negative value of coefficient of x^(n-2) in the characteristic polynomial of a certain n X n integer circulant matrix.at n=17A127407
- Composite numbers such that the square mean of their prime factors is a nonprime integer (where the prime factors are taken with multiplicity and the square mean of c and d is sqrt((c^2+d^2)/2)).at n=40A134602
- A sequence of asymptotic density zeta(9) - 1, where zeta is the Riemann zeta function.at n=28A143035
- Antidiagonal sums of the triangle A120070.at n=36A143785
- Triangle of coefficients of polynomials u(n,x) jointly generated with A210738; see the Formula section.at n=51A210603
- Number of (w,x,y,z) with all terms in {0,...,n}, w even, and x = y + z.at n=37A212760
- Decimal value of the bitmap of active segments in 7-segment display of the number n, variant 1: bits 0-6 refer to segments from top to bottom, left to right.at n=38A234691
- a(n) = A277715(n) / 3.at n=58A277716
- Decimal representation of the x-axis, from the origin to the right edge, of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 118", based on the 5-celled von Neumann neighborhood.at n=19A278954
- Decimal representation of the x-axis, from the origin to the right edge, of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 133", based on the 5-celled von Neumann neighborhood.at n=13A279140
- a(n) is the smallest k such that A307092(k) = n.at n=23A307074
- Number of ways to split a strict integer partition of n into consecutive subsequences with strictly decreasing sums.at n=41A318684