394
domain: N
Properties
Digital Properties
- Digit Count
- 3
- Digit Sum
- 16
- Digital Root
- 7
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 2
Divisibility
- Divisor Count
- 4
- Divisor Sum
- 594
- Proper Divisor Sum (Aliquot Sum)
- 200
- 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
- 196
- Möbius Function
- 1
- Radical
- 394
- 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
- 27
- 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
- dreihundertvierundneunzig· ordinal: dreihundertvierundneunzigste
- English
- three hundred ninety-four· ordinal: three hundred ninety-fourth
- Spanish
- trescientos noventa y cuatro· ordinal: 394º
- French
- trois cent quatre-vingt-quatorze· ordinal: trois cent quatre-vingt-quatorzième
- Italian
- trecentonovantaquattro· ordinal: 394º
- Latin
- trecenti nonaginta quattuor· ordinal: 394.
- Portuguese
- trezentos e noventa e quatro· ordinal: 394º
Appears in sequences
- Number of partitions of n, with three kinds of 1,2 and 3 and two kinds of 4,5,6,....at n=7A000715
- Boustrophedon transform of partition numbers 1, 1, 1, 2, 3, 5, 7, ...at n=6A000733
- a(n) = n!*(1 + Sum_{i=1..n} 1/i).at n=5A000774
- Expansion of 1/(1-x)^2/(1-x^2)/(1-x^4)/(1-x^10)/(1-x^20).at n=21A001307
- Number of ways of making change for n cents using coins of 1, 2, 5, 10, 50, 100 cents.at n=53A001312
- Number of ways of making change for n cents using coins of 1, 2, 5, 10, 20, 50 cents.at n=48A001313
- 2 together with primes multiplied by 2.at n=45A001747
- Numbers k such that (k^2 + k + 1)/21 is prime.at n=21A002644
- Nonsquare values of m in the discriminant D = 4*m leading to a new maximum of the L-function of the Dirichlet series L(1) = Sum_{k>0} Kronecker(D,k)/k.at n=16A003421
- a(n) = floor(n*phi^6), phi = golden ratio, A001622.at n=22A004921
- Record gaps between primes.at n=37A005250
- Noncototients: numbers k such that x - phi(x) = k has no solution.at n=39A005278
- Greatest k such that binomial(k,n) has fewer than n distinct prime factors.at n=12A005735
- Number of points on surface of tetrahedron; coordination sequence for sodalite net (equals 2*n^2+2 for n > 0).at n=14A005893
- Denominators of approximations to e.at n=17A006259
- Large Schröder numbers (or large Schroeder numbers, or big Schroeder numbers).at n=5A006318
- Apocalyptic powers: 2^a(n) contains 666.at n=22A007356
- Largest determinant of 2n+1 X 2n+1 matrix with entries +-1 and 0 diagonal.at n=2A007842
- Coordination sequence T3 for Zeolite Code AFT.at n=15A008028
- Coordination sequence T2 for Zeolite Code AWW.at n=14A008046