1476
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 18
- Digital Root
- 9
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 4
Divisibility
- Divisor Count
- 18
- Divisor Sum
- 3822
- Proper Divisor Sum (Aliquot Sum)
- 2346
- 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
- 480
- Möbius Function
- 0
- Radical
- 246
- Omega Function (Ω)
- 5
- 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
- yes
- Narcissistic Number
- no
- Collatz Steps
- 21
- 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
- Number of graphs with n edges.at n=9A000664
- a(n) = (7*n+1)*(7*n+6).at n=5A001526
- a(n) = round(n*phi^10), where phi is the golden ratio, A001622.at n=12A004945
- a(n) = ceiling(n*phi^10), where phi is the golden ratio, A001622.at n=12A004965
- Number of n-node animals on b.c.c. lattice.at n=4A007197
- Coordination sequence T1 for Zeolite Code EUO.at n=24A008095
- Number of ordered 5-tuples of integers from [ 1,n ] with no common factors among pairs.at n=20A015663
- Powers of fourth root of 7 rounded down.at n=15A018063
- Powers of fourth root of 7 rounded to nearest integer.at n=15A018064
- Pseudoprimes to base 37.at n=31A020165
- Numbers whose base-9 representation is the juxtaposition of two identical strings.at n=17A020337
- Place where n-th 1 occurs in A023133.at n=30A022795
- a(n) = T(n,0) + T(n,1) + ... + T(n,n), T given by A026536.at n=9A026548
- a(n) = Sum_{k=0..n-2} T(n,k) * T(n,k+2), with T given by A026615.at n=4A026958
- a(n) = n*(n+5).at n=36A028557
- Numbers with 18 divisors.at n=24A030636
- Numbers whose base-9 representation has 2 more 0's than 8's.at n=36A031494
- "AGK" (ordered, elements, unlabeled) transform of 2,2,2,2...at n=9A032023
- Number of dyslexic rooted compound windmills with n nodes and leaves of 2 colors with no symmetries.at n=8A032257
- Numbers whose set of base-11 digits is {1,2}.at n=17A032931