475
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
- 6
- Divisor Sum
- 620
- Proper Divisor Sum (Aliquot Sum)
- 145
- 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
- 360
- Möbius Function
- 0
- Radical
- 95
- Omega Function (Ω)
- 3
- 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
- 27
- Smith Number
- no
Primality
- Prime
- no
- Composite Number
- yes
- Semiprime
- no
- Squarefree Number
- no
- 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
- vierhundertfünfundsiebzig· ordinal: vierhundertfünfundsiebzigste
- English
- four hundred seventy-five· ordinal: four hundred seventy-fifth
- Spanish
- cuatrocientos setenta y cinco· ordinal: 475º
- French
- quatre cent soixante-quinze· ordinal: quatre cent soixante-quinzième
- Italian
- quattrocentosettantacinque· ordinal: 475º
- Latin
- quadringenti septuaginta quinque· ordinal: 475.
- Portuguese
- quatrocentos e setenta e cinco· ordinal: 475º
Appears in sequences
- Numbers k such that binomial(2*k,k) is divisible by (k+1)^2.at n=44A002503
- Numerators of Cauchy numbers of second type (= Bernoulli numbers B_n^{(n)}).at n=5A002657
- a(1) = 3; for n>0, a(n+1) = a(n) + floor((a(n)-1)/2).at n=14A003312
- Expansion of tan(x /cosh(x)).at n=3A003700
- a(n) = floor(100*log_2(n)).at n=26A004262
- a(n) = round(100*log_2(n)).at n=26A004263
- Divisible only by primes congruent to 5 mod 7.at n=24A004623
- Numbers whose binary expansion ends in 011.at n=58A004769
- Mian-Chowla sequence (a B_2 sequence): a(1) = 1; for n>1, a(n) = smallest number > a(n-1) such that the pairwise sums of elements are all distinct.at n=19A005282
- Number of fractions in Farey series of order n.at n=39A005728
- Number of unsensed planar maps with n edges and without faces or vertices of degree 1.at n=8A006397
- Coordination sequence T4 for Zeolite Code AET.at n=15A008010
- Coordination sequence T4 for Zeolite Code EMT.at n=18A008089
- Coordination sequence T1 for Zeolite Code MOR.at n=14A008182
- Coordination sequence T7 for Zeolite Code MTW.at n=14A008202
- Crystal ball sequence for planar net 3.6.3.6.at n=14A008580
- Molien series for Weyl group E_7.at n=28A008583
- Multiples of 19.at n=25A008601
- Multiples of 25.at n=19A008607
- Molien series for Weyl group F_4.at n=52A008670