943
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
- 1008
- Proper Divisor Sum (Aliquot Sum)
- 65
- 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
- 880
- Möbius Function
- 1
- Radical
- 943
- 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
- 36
- 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
- no
- Odd
- yes
Names
- German
- neunhundertdreiundvierzig· ordinal: neunhundertdreiundvierzigste
- English
- nine hundred forty-three· ordinal: nine hundred forty-third
- Spanish
- novecientos cuarenta y tres· ordinal: 943º
- French
- neuf cent quarante-trois· ordinal: neuf cent quarante-troisième
- Italian
- novecentoquarantatre· ordinal: 943º
- Latin
- nongenti quadraginta tres· ordinal: 943.
- Portuguese
- novecentos e quarenta e três· ordinal: 943º
Appears in sequences
- Number of centered hydrocarbons with n atoms.at n=14A000022
- First occurrence of n consecutive numbers that take same number of steps to reach 1 in 3x+1 problem.at n=6A000546
- Add 7, then reverse digits.at n=19A007398
- Numbers k for which 10k+1, 10k+3, 10k+7 and 10k+9 are primes.at n=10A007811
- Coordination sequence T1 for Zeolite Code FER.at n=19A008106
- Coordination sequence T1 for Milarite.at n=19A008256
- Composite but smallest prime factor >= 17.at n=24A008367
- Multiples of 23.at n=41A008605
- Coordination sequence for sigma-CrFe, Position Xc.at n=8A009961
- Triangle of multi-edge stars with n edges by cyclotomic index.at n=62A010358
- First coordinate of fundamental unit of real quadratic field with discriminant A003658(n), n >= 2.at n=21A014000
- Numbers of form |2^i - 3^j|.at n=64A014121
- a(n) = Sum_{i=1..n} phi(i) * (ceiling(n/i) - floor(n/i)).at n=56A015613
- Numbers with exactly 8 ones in binary expansion.at n=25A023690
- a(n) = s(1)t(n) + s(2)t(n-1) + ... + s(k)t(n+1-k), where k = [ (n+1)/2 ], s = A023532, t = A001950 (upper Wythoff sequence).at n=34A024374
- Position of n^2 + (n+1)^2 in A000404 (sums of 2 nonzero squares).at n=39A024519
- Number of 7's in all partitions of n.at n=27A024791
- Numbers k such that (#1's in s(1),...,s(k)) = -1 + (#1's in r(1),...,r(k)), where s = A025142 and r = A025143.at n=7A025145
- Number of positive integers that are not the sum of distinct n-th-order polygonal numbers.at n=14A025524
- Expansion of (1+x^2-x^3)/(1-x)^3.at n=41A027379