194
domain: N
Properties
Digital Properties
- Digit Count
- 3
- Digit Sum
- 14
- Digital Root
- 5
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 3
Divisibility
- Divisor Count
- 4
- Divisor Sum
- 294
- Proper Divisor Sum (Aliquot Sum)
- 100
- 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
- 96
- Möbius Function
- 1
- Radical
- 194
- 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
- 119
- 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
- einshundertvierundneunzig· ordinal: einshundertvierundneunzigste
- English
- one hundred ninety-four· ordinal: one hundred ninety-fourth
- Spanish
- ciento noventa y cuatro· ordinal: 194º
- French
- cent quatre-vingt-quatorze· ordinal: cent quatre-vingt-quatorzième
- Italian
- centonovantaquattro· ordinal: 194º
- Latin
- centum nonaginta quattuor· ordinal: 194.
- Portuguese
- cento e noventa e quatro· ordinal: 194º
Appears in sequences
- Numbers k such that k^4 + 1 is prime.at n=28A000068
- Smallest nonnegative number that is the sum of 3 squares in exactly n ways.at n=5A000437
- Smallest number that is the sum of 3 squares in at least n ways.at n=5A000451
- Number of equivalence classes of n X n matrices over {0,1} with rows and columns summing to 4, where equivalence is defined by row and column permutations. Also number of isomorphism classes of bicolored quartic bipartite graphs, where isomorphism cannot exchange the colors.at n=7A000513
- Number of steps to reach 1 in sequence A000546.at n=33A000547
- Number of secondary alcohols (alkanols or alkyl alcohols C_n H_{2n+1} OH) with n carbon atoms.at n=9A000599
- Number of free planar polyenoids with n nodes and symmetry point group C_s.at n=8A000941
- Numbers k such that sum of squares of k consecutive integers >= 1 is a square.at n=25A001032
- Numbers k such that phi(k) = phi(k+1).at n=5A001274
- Related to Gilbreath conjecture.at n=12A001549
- a(n) = a(n-2) + a(n-5).at n=31A001687
- 2 together with primes multiplied by 2.at n=25A001747
- Expansion of (psi(x^2) / psi(-x))^3 in powers of x where psi() is a Ramanujan theta function.at n=6A001937
- A Beatty sequence: a(n) = floor(n*(2 + sqrt(2))).at n=56A001952
- Numbers k for which the rank of the elliptic curve y^2 = x^3 + k*x is 0.at n=87A002158
- Primitive roots that go with the primes in A002230.at n=26A002229
- Minimal integer square root of -1 modulo p, where p is the n-th prime of the form 4k+1.at n=53A002314
- a(n) = floor(3^n / 2^n).at n=13A002379
- Numbers m such that m^2 + m + 1 is prime.at n=56A002384
- Markoff (or Markov) numbers: union of positive integers x, y, z satisfying x^2 + y^2 + z^2 = 3*x*y*z.at n=8A002559