942
domain: N
Properties
Digital Properties
- Digit Count
- 3
- Digit Sum
- 15
- Digital Root
- 6
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 3
Divisibility
- Divisor Count
- 8
- Divisor Sum
- 1896
- Proper Divisor Sum (Aliquot Sum)
- 954
- Abundant Number
- yes
- Perfect Number
- no
- Deficient Number
- no
- Highly Composite
- no
- Weird Number
- no
- Untouchable Number
- no
- Primitive Abundant
- yes
Derived Values
- Euler's Totient
- 312
- Möbius Function
- -1
- Radical
- 942
- 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
- 129
- 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
- neunhundertzweiundvierzig· ordinal: neunhundertzweiundvierzigste
- English
- nine hundred forty-two· ordinal: nine hundred forty-second
- Spanish
- novecientos cuarenta y dos· ordinal: 942º
- French
- neuf cent quarante-deux· ordinal: neuf cent quarante-deuxième
- Italian
- novecentoquarantadue· ordinal: 942º
- Latin
- nongenti quadraginta duo· ordinal: 942.
- Portuguese
- novecentos e quarenta e dois· ordinal: 942º
Appears in sequences
- Convolved Fibonacci numbers.at n=8A001628
- A Fielder sequence: a(n) = a(n-1) + a(n-2) - a(n-6), n >= 7.at n=15A001635
- Least positive unitary linear combination of distinct numbers in row n of Pascal's triangle; i.e., least positive sum of form d(0)C(n-1,0) + d(1)C(n-1,1) + ...+ d(m)C(n-1,m), d(i)=+-1, m = floor((n+1)/2).at n=23A004795
- Number of Boolean functions of n variables from Post class F(8,inf); number of degenerate Boolean functions of n variables.at n=3A005530
- Number of words of length n in a certain language.at n=19A005819
- Add 7, then reverse digits.at n=51A007398
- From random walks on complete directed triangle.at n=13A007829
- Coordination sequence T4 for Zeolite Code EUO.at n=19A008099
- Coordination sequence T2 for Zeolite Code GOO.at n=21A008112
- Coordination sequence T4 for Zeolite Code GOO.at n=21A008114
- a(n) = n + max_{0 <= i <n} ((n-i)*a(i)), a(0) = 1.at n=15A008609
- Expansion of (1+x^12)/((1-x)*(1-x^2)*(1-x^3)*(1-x^4)).at n=41A008773
- If a, b in sequence, so is a*b+2.at n=36A009299
- Coordination sequence T3 for Zeolite Code -ROG.at n=23A009861
- Number of unlabeled nonseparable (or 2-connected) loopless multigraphs with n edges.at n=9A010357
- Numbers k that divide s(k), where s(1)=1, s(j)=12*s(j-1)+j.at n=53A014859
- Number of ordered 5-tuples of integers from [ 1,n ] with no common factors among quadruples.at n=8A015653
- Coordination sequence T3 for Zeolite Code OSI.at n=20A016432
- Divisors of 942.at n=7A018734
- Cycle class sequence c(2n) (the number of true cycles of length 2n in which a certain node is included) for zeolite GIS = Cycle class sequences of Gismondine Ca4 [ Al8Si8O32 ] . 16 H2O.at n=4A019017