2246
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 14
- Digital Root
- 5
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 4
Divisibility
- Divisor Count
- 4
- Divisor Sum
- 3372
- Proper Divisor Sum (Aliquot Sum)
- 1126
- 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
- 1122
- Möbius Function
- 1
- Radical
- 2246
- 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
- 45
- 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
- Number of inequivalent n-gons.at n=8A000939
- Number of rooted toroidal maps with 3 faces and n vertices and without separating cycles or isthmuses.at n=2A006423
- Coordination sequence T1 for Zeolite Code FER.at n=29A008106
- Number of f-vectors for simplicial complexes of dimension at most 3 on at most n-1 vertices.at n=7A011828
- f-vectors for 2-neighborly simplicial complexes on n+1 vertices.at n=5A011834
- Expansion of 1/(1-x^10-x^11-x^12-x^13-x^14-x^15-x^16-x^17-x^18-x^19-x^20).at n=61A017896
- Numbers k such that the continued fraction for sqrt(k) has period 38.at n=19A020377
- Fibonacci sequence beginning 2, 24.at n=11A022374
- a(n) = Sum_{k = 1..n} k*floor((n + prime(k))/k).at n=29A024929
- a(n) is the smallest number that is the sum of 3 nonzero squares in exactly n ways.at n=19A025414
- 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 46.at n=10A031544
- Integer part of decimal 'base-2 looking' numbers divided by their actual base-2 values (denominator of a(n) is n, numerator is n written in binary but read in decimal).at n=44A032532
- Number of partitions of n such that cn(0,5) = cn(1,5) = cn(2,5) <= cn(3,5) = cn(4,5).at n=68A036850
- Number of partitions of n such that cn(0,5) = cn(1,5) = cn(2,5) < cn(3,5) = cn(4,5).at n=68A036853
- Number of partitions satisfying cn(1,5) + cn(4,5) < cn(0,5) + cn(2,5) + cn(3,5).at n=29A039868
- Numbers having three 2's in base 6.at n=38A043379
- Numbers whose base-13 representation has exactly 4 runs.at n=33A043659
- Numbers n such that string 0,6 occurs in the base 8 representation of n but not of n-1.at n=38A044193
- Numbers k such that the string 6,5 occurs in the base 9 representation of k but not of k-1.at n=30A044310
- Numbers n such that string 4,6 occurs in the base 10 representation of n but not of n-1.at n=24A044378