469
domain: N
Properties
Digital Properties
- Digit Count
- 3
- Digit Sum
- 19
- Digital Root
- 1
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 3
Divisibility
- Divisor Count
- 4
- Divisor Sum
- 544
- Proper Divisor Sum (Aliquot Sum)
- 75
- 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
- 396
- Möbius Function
- 1
- Radical
- 469
- 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
- yes
- Harshad Number
- no
- Narcissistic Number
- no
- Collatz Steps
- 22
- 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
- vierhundertneunundsechzig· ordinal: vierhundertneunundsechzigste
- English
- four hundred sixty-nine· ordinal: four hundred sixty-ninth
- Spanish
- cuatrocientos sesenta y nueve· ordinal: 469º
- French
- quatre cent soixante-neuf· ordinal: quatre cent soixante-neufième
- Italian
- quattrocentosessantanove· ordinal: 469º
- Latin
- quadringenti sexaginta novem· ordinal: 469.
- Portuguese
- quatrocentos e sessenta e nove· ordinal: 469º
Appears in sequences
- Coefficients of ménage hit polynomials.at n=3A000181
- Heptagonal numbers (or 7-gonal numbers): n*(5*n-3)/2.at n=14A000566
- Numbers that are the sum of 4 cubes in more than 1 way.at n=27A001245
- Expansion of 1/((1-x)^2*(1-x^2)*(1-x^5)).at n=26A001304
- Number of ways of making change for n cents using coins of 1, 2, 4, 10 cents.at n=52A001362
- Number of ways of making change for n cents using coins of 1, 2, 4, 10 cents.at n=53A001362
- Numbers n such that every digit contains a loop (version 2).at n=39A001744
- Generalized divisor function. Number of partitions of n with exactly three part sizes.at n=17A002134
- Numbers k for which the rank of the elliptic curve y^2 = x^3 + k is 2.at n=69A002155
- Numbers k such that 9*2^k - 1 is prime.at n=15A002236
- Numerator of Sum_{i+j+k=n; i,j,k > 0} 1/(i*j*k).at n=5A002545
- Numbers k such that (k^2 + k + 1)/3 is prime.at n=54A002640
- Sum of logarithmic numbers.at n=4A002745
- Numbers k such that k! - 1 is prime.at n=14A002982
- Hex (or centered hexagonal) numbers: 3*n*(n+1)+1 (crystal ball sequence for hexagonal lattice).at n=12A003215
- Numbers that are the sum of 9 positive 4th powers.at n=50A003343
- Numbers that are the sum of 10 positive 5th powers.at n=18A003355
- Number of stable trees with n nodes.at n=11A003426
- a(n) = 3*a(n-1) + a(n-2), with a(1)=1 and a(2)=4.at n=5A003688
- a(n) = C(n,1) + C(n,2) + C(n,3), or n*(n^2 + 5)/6.at n=14A004006