3743
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 17
- Digital Root
- 8
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 3
Divisibility
- Divisor Count
- 4
- Divisor Sum
- 3960
- Proper Divisor Sum (Aliquot Sum)
- 217
- 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
- 3528
- Möbius Function
- 1
- Radical
- 3743
- 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
- no
- Harshad Number
- no
- Narcissistic Number
- no
- Collatz Steps
- 69
- 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
- no
- Odd
- yes
Appears in sequences
- Number of partially achiral trees with n nodes.at n=16A003243
- Number of polyaboloes (or polytans): number of different shapes that can be formed with n congruent isosceles right triangles, identifying mirror images.at n=8A006074
- Coordination sequence T1 for Zeolite Code CAS.at n=38A008063
- Coordination sequence T3 for Zeolite Code CAS.at n=38A008065
- Coordination sequence T4 for Zeolite Code MFI.at n=39A008167
- Convolution of natural numbers with composite numbers.at n=21A023539
- Concatenation of n-th prime number and n-th lucky number.at n=11A032603
- Concatenation of n and n + 6 or {n,n+6}.at n=36A032611
- Number of partitions in parts not of the form 25k, 25k+3 or 25k-3. Also number of partitions with at most 2 parts of size 1 and differences between parts at distance 11 are greater than 1.at n=31A036002
- Numbers n such that 105*2^n-1 is prime.at n=23A050578
- Number of increasing arithmetic progressions in {1,2,3,...,n}, including trivial arithmetic progressions of lengths 1 and 2.at n=45A051336
- Numbers k such that x^k + x^2 + 1 is irreducible over GF(7).at n=10A059006
- A class of polytopal spheres.at n=17A059736
- Dimension of the space of weight n cuspidal newforms for Gamma_1( 47 ).at n=41A063320
- Semiprimes p1*p2 such that p2>p1 and p2 mod p1 = 7.at n=17A064905
- a(n) = n + (n-1)^2 + (n+1)^2.at n=43A096376
- a(n) = (1/6)*(n^3 + 21*n^2 + 74*n + 18).at n=22A103145
- Concatenations of pairs of primes that differ by 6.at n=7A103206
- Partial sums of A040976 (= primes-2).at n=43A103976
- Odd numbers n such that there exists a solution to lcm(s,z-s) = n, lcm(t,z-t) = n-2 and 0 < s+t < z < n.at n=18A108157