3674
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
- 2
Divisibility
- Divisor Count
- 8
- Divisor Sum
- 6048
- Proper Divisor Sum (Aliquot Sum)
- 2374
- 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
- 1660
- Möbius Function
- -1
- Radical
- 3674
- 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
- 131
- Smith Number
- no
- Vampire 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
Appears in sequences
- Coordination sequence occurring in Zeolite Codes AFG, CAN, LIO, LOS.at n=42A008013
- Coordination sequence T1 for Zeolite Code AFR.at n=46A008019
- Coordination sequence T2 for Zeolite Code CAS.at n=37A008064
- Coordination sequence T2 for Zeolite Code LTN.at n=42A008141
- Coordination sequence T4 for Zeolite Code RTH.at n=42A009896
- Denominators of continued fraction convergents to sqrt(922).at n=9A042783
- a(n)=(s(n)+1)/8, where s(n)=n-th base 8 palindrome that starts with 7.at n=29A043071
- Numbers whose base-5 representation contains exactly two 1's and three 4's.at n=11A045258
- Composite numbers whose 3 prime factors are distinct in length.at n=29A046443
- Coordination sequence T3 for Zeolite Code DON.at n=41A047955
- Coordination sequence T3 for Zeolite Code ISV.at n=42A047960
- a(n) = Sum_{k=1..n} lcm(n,k).at n=21A051193
- Numbers n such that n^2 contains exactly 8 different digits.at n=4A054036
- Numbers n such that 2^n in base 3 has same number of 2's as 2^(n+1) in base 3 and 2^n and 2^(n+1) have the same number of digits in base 3.at n=35A056736
- Numerators of continued fraction for left factorial.at n=15A056919
- Sum of totients of binomial coefficients C(n,j), j=0..n.at n=13A064450
- Even numbers k such that k/2 is nonprime and sigma(k+1) > sigma(k).at n=36A067827
- Multiples of 11 in which the even positioned digits from left are even and the odd positioned ones are odd.at n=42A080466
- a(n) = 3*n^2 - 1.at n=34A080663
- Diagonal sums of number array A082043.at n=10A082045