2946
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 21
- Digital Root
- 3
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 3
Divisibility
- Divisor Count
- 8
- Divisor Sum
- 5904
- Proper Divisor Sum (Aliquot Sum)
- 2958
- Abundant Number
- yes
- Perfect Number
- no
- Deficient Number
- no
- Highly Composite
- no
- Weird Number
- no
- Untouchable Number
- no
- Primitive Abundant
- yes
Derived Values
- Euler's Totient
- 980
- Möbius Function
- -1
- Radical
- 2946
- 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
- 97
- 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
- Number of points on surface of truncated cube: a(n) = 46*n^2 + 2 for n > 0.at n=8A005911
- Number of unsensed genus 1 maps with n edges.at n=6A006387
- Coordination sequence T5 for Zeolite Code DDR.at n=34A008075
- Coordination sequence T3 for Zeolite Code MTN.at n=33A008188
- Coordination sequence T4 for Zeolite Code ZON.at n=38A009922
- Number of 5-tuples of different integers from [ 2,n ] with no global factor.at n=14A015641
- Expansion of Product_{m>=1} (1+q^m)^(-3).at n=28A022598
- Positive integers which apparently never result in a palindrome under repeated applications of the function A056964(x) = x + (x with digits reversed).at n=37A023108
- Coordination sequence T2 for Zeolite Code CGS.at n=40A027366
- Coordination sequence T3 for Zeolite Code CGS.at n=40A027367
- Numbers k such that k^2+k+6 is a palindrome.at n=9A027729
- 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 54.at n=2A031552
- "DGK" (bracelet, element, unlabeled) transform of 1,3,5,7,...at n=11A032234
- Coordination sequence T3 for Zeolite Code ESV.at n=36A038412
- Numbers n such that string 3,3 occurs in the base 9 representation of n but not of n-1.at n=36A044281
- Numbers n such that string 4,6 occurs in the base 10 representation of n but not of n-1.at n=32A044378
- Numbers n such that string 3,3 occurs in the base 9 representation of n but not of n+1.at n=36A044662
- Numbers n such that string 4,6 occurs in the base 10 representation of n but not of n+1.at n=32A044759
- Numbers having, in base 14, (sum of even run lengths)=(sum of odd run lengths).at n=31A044885
- Numbers whose base-3 representation contains exactly four 0's and four 1's.at n=24A044989