6020
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 8
- Digital Root
- 8
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 1
Divisibility
- Divisor Count
- 24
- Divisor Sum
- 14784
- Proper Divisor Sum (Aliquot Sum)
- 8764
- 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
- 2016
- Möbius Function
- 0
- Radical
- 3010
- Omega Function (Ω)
- 5
- 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
- 41
- 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
- 4-dimensional pyramidal numbers: a(n) = (3*n+1)*binomial(n+2, 3)/4. Also Stirling2(n+2, n).at n=14A001296
- Convolved Fibonacci numbers.at n=9A001872
- a(n) = 10000*log_10(n) rounded down.at n=3A004228
- Coordination sequence for CaF2(1), Ca position.at n=26A009923
- Stirling numbers of second kind S2(16,n).at n=13A011565
- Erroneous version of A003216.at n=7A034183
- Denominators of continued fraction convergents to sqrt(906).at n=3A042751
- Base-9 palindromes that start with 8.at n=13A043035
- Iterated procedure 'composite k added to sum of its prime factors reaches a prime' yields 7 skipped primes.at n=34A050774
- Cubic star numbers: a(n) = n^3 + 4*Sum_{i=0..n-1} i^2.at n=14A051673
- Trajectory of 13 under the '13x+1' map.at n=15A057684
- a(n) = (n^3 + 5*n + 18)/6.at n=35A060163
- Bisection of Fibonacci triangle A037027: odd-indexed members of column sequences of A037027 (not counting leading zeros).at n=31A060921
- Product(n/k - k) where the product is over the divisors k of n and where 1 <= k <= sqrt(n).at n=43A068333
- Self-convolution of A073739; odd-indexed terms are twice the odd primes.at n=48A073740
- Numbers k such that A000984(k) mod k = 0 and A080383(k) != 7.at n=20A080392
- Numbers n which when converted to base 6, reversed and converted back to base 10 yield a number m such that n mod m = 0. Cases which are trivial or result in digit loss are excluded.at n=2A091080
- Sequence resulting from a sum of three repeated binomial(n+3,4) sequences.at n=26A093039
- Position of prime(n)# in A025487.at n=12A098719
- Triangle read by rows: T(n,h)/(n-1), where T is the array in A101819.at n=17A101820