994
domain: N
Properties
Digital Properties
- Digit Count
- 3
- Digit Sum
- 22
- Digital Root
- 4
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 3
Divisibility
- Divisor Count
- 8
- Divisor Sum
- 1728
- Proper Divisor Sum (Aliquot Sum)
- 734
- 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
- 420
- Möbius Function
- -1
- Radical
- 994
- Omega Function (Ω)
- 3
- 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
- 23
- Smith Number
- no
Primality
- Prime
- no
- Composite Number
- yes
- Semiprime
- no
- 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
- neunhundertvierundneunzig· ordinal: neunhundertvierundneunzigste
- English
- nine hundred ninety-four· ordinal: nine hundred ninety-fourth
- Spanish
- novecientos noventa y cuatro· ordinal: 994º
- French
- neuf cent quatre-vingt-quatorze· ordinal: neuf cent quatre-vingt-quatorzième
- Italian
- novecentonovantaquattro· ordinal: 994º
- Latin
- nongenti nonaginta quattuor· ordinal: 994.
- Portuguese
- novecentos e noventa e quatro· ordinal: 994º
Appears in sequences
- Coefficients of ménage hit polynomials.at n=4A000159
- NP-equivalence classes of threshold functions of exactly n variables.at n=6A000619
- a(n) is the number of partitions of 5n that can be obtained by adding together five (not necessarily distinct) partitions of n.at n=5A002222
- Number of (undirected) Hamiltonian paths in the n-ladder graph K_2 X P_n.at n=31A003682
- Largest number not the sum of distinct n-th-order polygonal numbers.at n=8A007419
- Handsome numbers: sum of positive powers of its digits; a(n) = Sum_{i=1..k} d[i]^e[i] where d[1..k] are the decimal digits of a(n), e[i] > 0.at n=48A007532
- Coordination sequence T2 for Zeolite Code LTN.at n=22A008141
- Coordination sequence T2 for Zeolite Code NES.at n=20A008206
- Coordination sequence T2 for Zeolite Code -CHI.at n=20A009847
- a(n) = n^2 + n + 2.at n=31A014206
- Numbers k such that phi(k) + 12 | sigma(k).at n=31A015805
- a(n) = (tau(n^n)+n-1)/n.at n=29A016012
- Divisors of 994.at n=7A018764
- Cycle class sequence c(n) (the number of true cycles of length n in which a certain node is included) for zeolite STI = Stilbite Na4Ca8[Al20Si52O144].56H2O starting with a T2 atom.at n=10A019240
- Numbers whose sum of divisors is a cube.at n=11A020477
- Expansion of 1/((1-x)(1-3x)(1-4x)(1-6x)).at n=3A021354
- Index of 5^n within sequence of numbers of form 3^i*5^j.at n=36A022338
- Fibonacci sequence beginning 2, 28.at n=9A022376
- Expansion of Product_{m>=1} (1-m*q^m)^-14.at n=3A022738
- a(n) = a(n-1) + c(n-1) for n >= 2, a( ) increasing, given a(1)=5; where c( ) is complement of a( ).at n=39A022937