214
domain: N
Properties
Digital Properties
- Digit Count
- 3
- Digit Sum
- 7
- Digital Root
- 7
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 1
Divisibility
- Divisor Count
- 4
- Divisor Sum
- 324
- Proper Divisor Sum (Aliquot Sum)
- 110
- 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
- 106
- Möbius Function
- 1
- Radical
- 214
- 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
- 101
- Smith 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
Names
- German
- zweihundertvierzehn· ordinal: zweihundertvierzehnste
- English
- two hundred fourteen· ordinal: two hundred fourteenth
- Spanish
- doscientos catorce· ordinal: 214º
- French
- deux cent quatorze· ordinal: deux cent quatorzième
- Italian
- duecentoquattordici· ordinal: 214º
- Latin
- ducenti quattuordecim· ordinal: 214.
- Portuguese
- duzentos e catorze· ordinal: 214º
Appears in sequences
- Number of asymmetrical dissections of n-gon.at n=4A000131
- Number of trees with n nodes, 2 of which are labeled.at n=5A000243
- Number of rooted polyhedral graphs with n edges.at n=6A000287
- Conjectured dimension of a module associated with the free commutative Moufang loop with n generators.at n=5A000373
- Number of steps to reach 1 in sequence A000546.at n=45A000547
- Number of switching networks with GL(n,2) acting on the domain and AG(3,2) acting on the range.at n=2A000893
- "Half-Catalan numbers": a(n) = Sum_{k=1..floor(n/2)} a(k)*a(n-k) with a(1) = 1.at n=10A000992
- Number of ways of making change for n cents using coins of 1, 2, 5, 10, 20, 50 cents.at n=39A001313
- 2 together with primes multiplied by 2.at n=28A001747
- a(1)=2, a(2)=3; for n >= 3, a(n) is smallest number that is uniquely of the form a(j) + a(k) with 1 <= j < k < n.at n=45A001857
- A Beatty sequence: floor(n * (sqrt(5) + 3)).at n=40A001962
- Wilson remainders: a(n) = ((p-1)!+1)/p mod p, where p = prime(n).at n=53A002068
- Numbers k for which the rank of the elliptic curve y^2 = x^3 - k is 2.at n=27A002154
- Numbers of form x^2 + 6y^2.at n=63A002481
- Smallest number of stones in Tchoukaillon (or Mancala, or Kalahari) solitaire that make use of n-th hole.at n=25A002491
- a(n) = Sum_{d|n, d <= 3} d^2 + 3*Sum_{d|n, d>3} d.at n=54A002660
- a(n) = Sum_{d|n, d <= 3} d^2 + 3*Sum_{d|n, d>3} d.at n=50A002660
- Numbers k such that (4*k^2 + 1)/5 is prime.at n=37A002732
- Number of nonisomorphic connected functions with no fixed points, or proper rings with n edges.at n=7A002862
- a(n) = n^3 - floor( n/3 ).at n=6A002901