2406
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
- 8
- Divisor Sum
- 4824
- Proper Divisor Sum (Aliquot Sum)
- 2418
- 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
- 800
- Möbius Function
- -1
- Radical
- 2406
- 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
- 58
- 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
- Truncated octahedral numbers: 16*n^3 - 33*n^2 + 24*n - 6.at n=5A005910
- Coordination sequence T4 for Zeolite Code FER.at n=30A008109
- Coordination sequence T1 for Zeolite Code LIO.at n=34A008129
- Exponential convolution of Fibonacci numbers with themselves.at n=8A014334
- Number of 5-tuples of different integers from [ 2,n ] with no common factors among quadruples.at n=14A015645
- First n elements of Thue-Morse sequence A010059 read as a binary number.at n=11A019299
- Coordination sequence T1 for Zeolite Code CGF.at n=34A019451
- Fibonacci sequence beginning 6, 13.at n=12A022388
- Numbers k such that Fibonacci(k) == 8 (mod k).at n=21A023177
- Convolution of A023532 and primes.at n=39A023606
- s(1)t(n) + s(2)t(n-1) + ... + s(k)t(n+1-k), where k = [ (n+1)/2 ], s = (odd natural numbers), t = A001950 (upper Wythoff sequence).at n=16A024600
- Erroneous version of A024368.at n=13A025068
- [ Sum{(sqrt(j+1)-sqrt(i+1))^3} ], 1 <= i < j <= n.at n=26A025223
- a(n) = n^2 + (n+1)^2 + (n+2)^2 + (n+3)^2.at n=23A027575
- Expansion of (theta_3(z)*theta_3(23z) + theta_2(z)*theta_2(23z))^3.at n=49A028659
- 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 48.at n=9A031546
- Numbers whose set of base-13 digits is {1,3}.at n=16A032920
- Numbers k such that if d,e are consecutive digits of k in base 6, then |d-e| >= 4.at n=28A032988
- Positive numbers having the same set of digits in base 6 and base 7.at n=24A033170
- McKay-Thompson series of class 13A for the Monster group with a(0) = -2.at n=10A034318