6452
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 17
- Digital Root
- 8
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 2
Divisibility
- Divisor Count
- 6
- Divisor Sum
- 11298
- Proper Divisor Sum (Aliquot Sum)
- 4846
- Abundant Number
- no
- Perfect Number
- no
- Deficient Number
- yes
- Highly Composite
- no
- Weird Number
- no
- Untouchable Number
- no
- Primitive Abundant
- no
Derived Values
- Euler's Totient
- 3224
- Möbius Function
- 0
- Radical
- 3226
- Omega Function (Ω)
- 3
- Little Omega Function (ω)
- 2
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
- 23
- 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 ordered quadruples of integers from [ 2,n ] with no global factor.at n=18A015638
- 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 40.at n=37A031538
- Denominators of continued fraction convergents to sqrt(685).at n=8A042317
- Number of distinct polynomials of degree < n and coefficients > 0 with solutions k >= 1 such that p(k) = n.at n=7A102433
- Number of sets {p, p'}, where p is a partition of n and p' is conjugate partition of p such that p and p' have no common parts.at n=57A114701
- Indices of Fibonacci numbers in A073656, i.e., A073656(n) = F(a(n)).at n=15A119755
- Connell (3,5)-sum sequence (partial sums of the (3,5)-Connell sequence).at n=67A122796
- Number of walks within N^3 (the first octant of Z^3) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, 1), (-1, 0, 0), (1, -1, 0), (1, 0, -1), (1, 1, 0)}.at n=8A149179
- Riordan array (1/u,(1-u)/2), u=sqrt(1-4x+4*x^3).at n=47A168151
- Where zeros occur in the 1-0 race in the binary expansion of Pi-3; that is, n such that A174832(n) = 0.at n=11A178980
- Numbers k such that there are 2 primes between 100*k and 100*k + 99.at n=12A186394
- Inverse permutation to A190134.at n=2A190135
- Records in A087669.at n=26A192230
- Smallest number greater than n that is palindromic in base 3 and base n.at n=48A196510
- Number of nondecreasing sequences of n 1..7 integers with every element dividing the sequence sum.at n=24A212535
- Rectangular array: (row n) = b**c, where b(h) = h, c(h) = binomial(2*n-4+2*h,n-2+h), n>=1, h>=1, and ** = convolution.at n=30A213853
- Nonnegative integers whose English number-words have the identical number of letters contributing to each represented letter-frequency.at n=53A216163
- Number of binary strings of length 2n that contain the ones' complements and the reversals of each of their two halves.at n=17A237502
- Number of partitions of n such that (greatest part) <= (multiplicity of least part).at n=40A240182
- Number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 57", based on the 5-celled von Neumann neighborhood.at n=43A270075