1874
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 20
- Digital Root
- 2
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 3
Divisibility
- Divisor Count
- 4
- Divisor Sum
- 2814
- Proper Divisor Sum (Aliquot Sum)
- 940
- 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
- 936
- Möbius Function
- 1
- Radical
- 1874
- 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
- 174
- Smith Number
- no
- Vampire 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
- yes
- Odd
- no
Appears in sequences
- Squares written in base 9.at n=37A002442
- Expansion of (1+x^2)(1+x^4)/((1-x)^2*(1-x^2)*(1-x^3)).at n=25A007979
- Coordination sequence occurring in Zeolite Codes AFG, CAN, LIO, LOS.at n=30A008013
- Coordination sequence T2 for Zeolite Code JBW.at n=29A008122
- Coordination sequence T1 for Zeolite Code LIO.at n=30A008129
- Coordination sequence T3 for Zeolite Code LIO.at n=30A008131
- Coordination sequence T1 for Zeolite Code LOS.at n=30A008132
- Coordination sequence T1 for Zeolite Code MTN.at n=26A008186
- Year of birth of n-th President of U.S.A.at n=30A008745
- Expansion of (1+x^8)/((1-x)*(1-x^2)*(1-x^3)*(1-x^4)).at n=50A008769
- Coordination sequence T1 for Zeolite Code RTH.at n=30A009893
- Coordination sequence T4 for Zeolite Code RTH.at n=30A009896
- Coordination sequence for MgNi2, Position Ni1.at n=11A009933
- a(0) = 1, a(n) = 13*n^2 + 2 for n>0.at n=12A010004
- a(n) = floor( n*(n-1)*(n-2)/27 ).at n=38A011909
- Quadruples of different integers from [ 1,n ] with no common factors between pairs.at n=24A015623
- a(n) = a(n-3) + a(n-4), with a(0)=1, a(1)=a(2)=0, a(3)=1.at n=44A017817
- Coordination sequence T1 for Zeolite Code CGF.at n=30A019451
- Pisot sequences E(5,7), P(5,7).at n=16A020711
- Pisot sequences E(7,10), P(7,10).at n=15A020721