2046
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 12
- Digital Root
- 3
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 1
Divisibility
- Divisor Count
- 16
- Divisor Sum
- 4608
- Proper Divisor Sum (Aliquot Sum)
- 2562
- Abundant Number
- yes
- Perfect Number
- no
- Deficient Number
- no
- Highly Composite
- no
- Weird Number
- no
- Untouchable Number
- no
- Primitive Abundant
- no
Derived Values
- Euler's Totient
- 600
- Möbius Function
- 1
- Radical
- 2046
- Omega Function (Ω)
- 4
- Little Omega Function (ω)
- 4
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
- 63
- 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 nonnegative solutions to x^2 + y^2 + z^2 <= n^2.at n=15A000604
- a(n) = 2^n - 2.at n=11A000918
- High temperature series for spin-1/2 Ising free energy on 3-dimensional simple cubic lattice.at n=5A001393
- a(n) = 2^(2*n+1) - 2.at n=5A002446
- Maximal number of pieces obtained by slicing a torus (or a bagel) with n cuts: (n^3 + 3*n^2 + 8*n)/6 (n > 0).at n=22A003600
- Numbers n such that n^32 + 1 is prime.at n=39A006315
- a(n) = n*(n + 1)*(n^2 - 3*n + 5)/6.at n=11A006484
- 'Eban' numbers (the letter 'e' is banned!).at n=30A006933
- Number of free subsets of multiplicative group of GF(2^n).at n=11A007230
- 11-gonal (or hendecagonal) pyramidal numbers: a(n) = n*(n+1)*(3*n-2)/2.at n=11A007586
- a(n) = floor(n*(n-1)*(n-2)/16).at n=33A011898
- a(n) = 2*a(n-1) if n odd else 2*a(n-1) + 6.at n=9A014131
- Pseudoprimes to base 97.at n=39A020225
- Expansion of Product_{m>=1} (1 + x^m)^22.at n=3A022587
- Expansion of Product_{m>=1} (1 + m*q^m)^3.at n=8A022631
- Positive numbers k such that k and 3*k are anagrams in base 7 (written in base 7).at n=9A023069
- Numbers k such that Fibonacci(k) == 8 (mod k).at n=17A023177
- Convolution of odd numbers and A014306.at n=48A023661
- T(n,0) + T(n,1) + ... + T(n,n), T given by A026714.at n=9A026721
- Number of aperiodic binary strings of length n; also number of binary sequences with primitive period n.at n=11A027375