8600
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 14
- Digital Root
- 5
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 1
Divisibility
- Divisor Count
- 24
- Divisor Sum
- 20460
- Proper Divisor Sum (Aliquot Sum)
- 11860
- 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
- 3360
- Möbius Function
- 0
- Radical
- 430
- Omega Function (Ω)
- 6
- 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
- yes
- Harshad Number
- no
- Narcissistic Number
- no
- Collatz Steps
- 26
- 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
- Coordination sequence for MgNi2, Position Ni2.at n=23A009932
- a(n) = Sum_{m=1..n} Sum_{k=1..m} prime(k).at n=24A014148
- Number of partitions of n into its divisors with at least one part of size 1.at n=47A014648
- Numbers in which 0,1,2,3,4,5 all occur in base 6.at n=9A031947
- Expansion of 1 / Product_{k >= 1} (1-q^k)^2*(1-q^(11k))^2.at n=17A032442
- Digitally balanced numbers in base 6: equal numbers of 0's, 1's, ..., 5's.at n=9A049357
- Number of rooted trees with n nodes and 3 leaves.at n=23A055278
- Local ranks of terms of A057122.at n=45A057124
- McKay-Thompson series of class 36D for the Monster simple group.at n=40A058647
- Generalized Catalan numbers 10*x*A(x)^2 -A(x) +1 -9*x =0.at n=4A068772
- Number of nonisomorphic unrooted unicursal planar maps with n edges.at n=7A069730
- Numbers k such that average of prime(k) and prime(k+1) is a perfect square.at n=36A076692
- Number of permutations of 1,...,2n with alternate odd/even entries that have no adjacent members.at n=5A092254
- Numbers k such that 2^(2*(k+1)) + 2^k - 1 is prime.at n=33A105181
- One third of the sum of the first n primes, when an integer.at n=31A112270
- n times n+9 gives the concatenation of two numbers m and m-3.at n=1A116271
- Sum of the interior angles of an n-sided polygon, in gradians.at n=42A117412
- a(n) = Sum_{1<=k<=n, gcd(k,n)=1}, A000217(k).at n=49A127415
- Terms of A061047 ending in 0.at n=17A146950
- Numbers k such that the number of digits d in k^2 is not prime and for each factor f of d the sum of the d/f digit groupings in k^2 of size f is a square.at n=26A153745