366
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
- 2
Divisibility
- Divisor Count
- 8
- Divisor Sum
- 744
- Proper Divisor Sum (Aliquot Sum)
- 378
- 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
- 120
- Möbius Function
- -1
- Radical
- 366
- 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
- 94
- 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
- dreihundertsechsundsechzig· ordinal: dreihundertsechsundsechzigste
- English
- three hundred sixty-six· ordinal: three hundred sixty-sixth
- Spanish
- trescientos sesenta y seis· ordinal: 366º
- French
- trois cent soixante-six· ordinal: trois cent soixante-sixième
- Italian
- trecentosessantasei· ordinal: 366º
- Latin
- trecenti sexaginta sex· ordinal: 366.
- Portuguese
- trezentos e sessenta e seis· ordinal: 366º
Appears in sequences
- a(n) = n + n*(n-1)*(n-2)*(n-3).at n=6A001094
- Triangle read by rows: T(n,k) = number of permutations of length n with exactly k rising or falling successions, for n >= 1, 0 <= k <= n-1.at n=33A001100
- Number of graphical basis partitions of 2n.at n=15A001130
- Number of equivalence classes with primitive period n of base 3 necklaces, where necklaces are equivalent under rotation and permutation of symbols.at n=8A002075
- Numbers k for which the rank of the elliptic curve y^2 = x^3 - k is 2.at n=48A002154
- Numbers k for which the rank of the elliptic curve y^2 = x^3 + k is 2.at n=54A002155
- Numbers k such that 9*2^k + 1 is prime.at n=19A002256
- Number of partially achiral planted trees with n nodes.at n=13A003237
- a(n) = A000201(A003234(n)) + n.at n=52A003248
- Coefficients of Jacobi Eisenstein series of index 1 and weight 8.at n=4A003783
- Number of partitions of 1/n into 3 reciprocals of positive integers.at n=23A004194
- a(n) = floor(100*log(n)).at n=38A004237
- a(n) = 100*log(n) rounded to nearest integer.at n=38A004238
- a(n) = round(n*phi^5), where phi is the golden ratio, A001622.at n=33A004940
- a(n) = ceiling(n*phi^5), where phi is the golden ratio, A001622.at n=33A004960
- Number of nonequivalent dissections of a polygon into n pentagons by nonintersecting diagonals up to rotation.at n=5A005038
- a(n) is the number of integers m which take n steps to reach 1 in '3x+1' problem.at n=27A005186
- Noncototients: numbers k such that x - phi(x) = k has no solution.at n=36A005278
- Representation degeneracies for Neveu-Schwarz strings.at n=15A005295
- a(n) = n*(5*n+1)/2.at n=12A005475