14
domain: N
Properties
Digital Properties
- Digit Count
- 2
- Digit Sum
- 5
- Digital Root
- 5
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 1
Divisibility
- Divisor Count
- 4
- Divisor Sum
- 24
- Proper Divisor Sum (Aliquot Sum)
- 10
- 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
- 6
- Möbius Function
- 1
- Radical
- 14
- Omega Function (Ω)
- 2
- Little Omega Function (ω)
- 2
Special
- Factorial
- no
- Catalan Number
- yes
- 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
- 17
- Smith Number
- no
Classification
- Natural
- yes
- Even
- yes
- Odd
- 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
Names
- German
- vierzehn· ordinal: vierzehnte
- English
- fourteen· ordinal: fourteenth
- Spanish
- catorce· ordinal: decimocuarto
- French
- quatorze· ordinal: quatorzième
- Italian
- quattordici· ordinal: 14º
- Latin
- quattuordecim· ordinal: 14.
- Portuguese
- catorze· ordinal: 14º
Appears in sequences
- Number of groups of order n.at n=16A000001
- Number of groups of order n.at n=36A000001
- Number of groups of order n.at n=40A000001
- Integer part of square root of n-th prime.at n=44A000006
- Integer part of square root of n-th prime.at n=45A000006
- Integer part of square root of n-th prime.at n=46A000006
- Integer part of square root of n-th prime.at n=47A000006
- Number of series-reduced trees with n nodes.at n=11A000014
- Number of primitive permutation groups of degree n.at n=27A000019
- Number of primitive permutation groups of degree n.at n=60A000019
- Mosaic numbers or multiplicative projection of n: if n = Product (p_j^k_j) then a(n) = Product (p_j * k_j).at n=13A000026
- Mosaic numbers or multiplicative projection of n: if n = Product (p_j^k_j) then a(n) = Product (p_j * k_j).at n=48A000026
- The positive integers. Also called the natural numbers, the whole numbers or the counting numbers, but these terms are ambiguous.at n=13A000027
- Number of n-bead necklaces with 2 colors when turning over is not allowed; also number of output sequences from a simple n-stage cycling shift register; also number of binary irreducible polynomials whose degree divides n.at n=6A000031
- Let A(n) = #{(i,j): i^2 + j^2 <= n}, V(n) = Pi*n, P(n) = A(n) - V(n); A000099 gives values of n where |P(n)| sets a new record; sequence gives closest integer to P(A000099(n)).at n=12A000036
- Numbers that are not squares (or, the nonsquares).at n=10A000037
- Number of primitive n-bead necklaces (turning over is allowed) where complements are equivalent.at n=8A000046
- 1-digit numbers arranged in alphabetical order, then the 2-digit numbers arranged in alphabetical order, then the 3-digit numbers, etc.at n=43A000052
- Local stops on New York City 1 Train (Broadway-7 Avenue Local) subway.at n=0A000053
- Local stops on New York City A line subway.at n=1A000054