3796
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 25
- Digital Root
- 7
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 3
Divisibility
- Divisor Count
- 12
- Divisor Sum
- 7252
- Proper Divisor Sum (Aliquot Sum)
- 3456
- 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
- 1728
- Möbius Function
- 0
- Radical
- 1898
- 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
- Absolute value of Glaisher's beta'(2n+1).at n=39A002291
- Truncated square numbers: 7*n^2 + 4*n + 1.at n=23A005892
- Coordination sequence T2 for Zeolite Code DFO.at n=47A009876
- Numbers k such that the continued fraction for sqrt(k) has period 54.at n=11A020393
- A B_2 sequence: a(n) is the least value such that sequence increases and pairwise sums of elements are all distinct.at n=44A025582
- Numbers whose square is palindromic in base 12.at n=22A029737
- Numbers k such that the continued fraction for sqrt(k) has even period and if the last term of the periodic part is deleted the central term is 30.at n=41A031528
- Numbers each of whose runs of digits in base 12 has length 2.at n=25A033010
- Numbers whose base-12 expansion has no run of digits with length < 2.at n=38A033025
- Number of partitions of n into parts 5k+1 and 5k+2 with at least one part of each type.at n=53A035631
- Numbers k such that the string 7,7 occurs in the base 9 representation of k but not of k-1.at n=46A044321
- Positive integers having more base-12 runs of even length than odd.at n=27A044838
- a(n) = Sum_{i=0..floor(n/2)} T(2i,n-2i) where T is A049627.at n=41A049630
- a(n) = Sum_{i=0..floor(n/2)} T(2i+1,n-2i-1) where T is A049627.at n=41A049631
- Numbers k such that k | sigma_6(k).at n=23A055710
- a(n) = (n + 2)*(2*n^2 - n + 3)/6.at n=22A056520
- Total area of all polyominoes with perimeter 2n.at n=6A057753
- Dimension of the space of weight n cuspidal newforms for Gamma_1( 69 ).at n=29A063342
- a(0) = 1; thereafter, a(n) is the smallest number such that Sum_{m = 0 .. n-1} a(m)*a(m+1) is a square.at n=55A065336
- Make an infinite chessboard from the squares in the first quadrant; sequence gives number of squares a knight can reach in n moves starting at the origin.at n=46A065450