183
domain: N
Properties
Digital Properties
- Digit Count
- 3
- Digit Sum
- 12
- Digital Root
- 3
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 2
Divisibility
- Divisor Count
- 4
- Divisor Sum
- 248
- 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
- 120
- Möbius Function
- 1
- Radical
- 183
- 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
- 93
- 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
- einshundertdreiundachtzig· ordinal: einshundertdreiundachtzigste
- English
- one hundred eighty-three· ordinal: one hundred eighty-third
- Spanish
- ciento ochenta y tres· ordinal: 183º
- French
- cent quatre-vingt-trois· ordinal: cent quatre-vingt-troisième
- Italian
- centoottantatre· ordinal: 183º
- Latin
- centum octoginta tres· ordinal: 183.
- Portuguese
- cento e oitenta e três· ordinal: 183º
Appears in sequences
- Number of positive integers <= 2^n of form x^2 + 12 y^2.at n=10A000021
- Number of partitions into non-integral powers.at n=9A000148
- Number of relations on an infinite set.at n=4A000663
- Number of combinatorial types of simplicial n-dimensional polytopes with n+3 nodes.at n=8A000943
- a(n) = least m such that if a/b < c/d where a,b,c,d are integers in [0,n], then a/b < k/m < c/d for some integer k.at n=16A001000
- Number of sublattices of index n in generic 3-dimensional lattice.at n=12A001001
- Number of cells of square lattice of edge 1/n inside quadrant of unit circle centered at 0.at n=15A001182
- Semiprimes (or biprimes): products of two primes.at n=58A001358
- Number of ways of making change for n cents using coins of 1, 2, 4, 12, 24, 48, 96, 120 cents (based on English coinage of 1939).at n=37A001364
- Number of ways of making change for n cents using coins of 1, 2, 4, 12, 24, 48, 96, 120 cents (based on English coinage of 1939).at n=36A001364
- Expansion of 1/(1-x)^2/(1-x^2)/(1-x^6)/(1-x^12)/(1-x^24)/(1-x^48)/(1-x^60).at n=18A001365
- a(n) = 3 * prime(n).at n=17A001748
- Sorting numbers: number of comparisons for merge insertion sort of n elements.at n=43A001768
- Sorting numbers: maximal number of comparisons for sorting n elements by binary insertion.at n=40A001855
- a(n) = floor((n+2/3)*(5+sqrt(13))/2); v-pile positions in the 3-Wythoff game.at n=42A001960
- A Beatty sequence: floor(n * (sqrt(5) + 3)).at n=34A001962
- Expansion of 1/((1-x^2)*(1-x^4)^2*(1-x^6)*(1-x^8)*(1-x^10)) (even powers only).at n=14A001994
- Central polygonal numbers: a(n) = n^2 - n + 1.at n=14A002061
- a(n+1) = a(n)^2 + a(n) + 1.at n=4A002065
- Numbers that are not the sum of 3 distinct nonzero triangular numbers.at n=27A002244