3772
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 19
- Digital Root
- 1
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 4
Divisibility
- Divisor Count
- 12
- Divisor Sum
- 7056
- Proper Divisor Sum (Aliquot Sum)
- 3284
- 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
- 1760
- Möbius Function
- 0
- Radical
- 1886
- Omega Function (Ω)
- 4
- 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
- 38
- Smith Number
- no
- Vampire 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
- yes
- Odd
- no
Appears in sequences
- a(n) = solution to the postage stamp problem with 3 denominations and n stamps.at n=37A001208
- Coordination sequence T1 for Zeolite Code AFS.at n=47A008023
- Coordination sequence T1 for Zeolite Code BPH.at n=47A008055
- Coordination sequence T10 for Zeolite Code EUO.at n=38A008096
- Coordination sequence T2 for Zeolite Code LOV.at n=41A008135
- Coordination sequence T9 for Zeolite Code MFI.at n=39A008172
- Numbers k not congruent to 0 (mod 3) such that phi(k) + 4 | sigma(k).at n=4A015806
- Numbers whose base-3 representation is the juxtaposition of two identical strings.at n=45A020331
- Numbers whose base-9 representation is the juxtaposition of two identical strings.at n=45A020337
- Number of subgroups of index n in fundamental group of a certain fiber space.at n=5A027838
- Product of n with 666 is palindromic.at n=28A030094
- Numbers whose base-7 representation contains exactly three 6's.at n=27A043419
- Record subsequence of b(3k+2), b()=A048142().at n=28A051058
- a(n) = (1/6)*(2*n - 3)*(n + 2)*(n + 1).at n=24A058373
- Dimension of the space of weight n cuspidal newforms for Gamma_1( 65 ).at n=25A063338
- 100000n+1, 100000n+3, 100000n+7, 100000n+9 are all primes.at n=3A064964
- Numbers k such that cyclotomic(k, prime(k)) is a prime number.at n=17A070523
- Rounded total surface area of a regular octahedron with edge length n.at n=33A071396
- Multiples of 4 using only prime digits (2, 3, 5 and 7).at n=38A077534
- Consider recurrence b(0) = n/3, b(n) = b(0)*ceiling(b(n-1)); sequence gives first integer reached (or -1 if no integer is ever reached).at n=43A081852