9696
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 30
- Digital Root
- 3
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 3
Divisibility
- Divisor Count
- 24
- Divisor Sum
- 25704
- Proper Divisor Sum (Aliquot Sum)
- 16008
- 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
- 3200
- Möbius Function
- 0
- Radical
- 606
- Omega Function (Ω)
- 7
- 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
- 47
- 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
- Strobogrammatic numbers: the same upside down.at n=36A000787
- 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 49.at n=20A031547
- Number of reversible strings with n-1 beads of 2 colors. 7 beads are black. String is not palindromic.at n=9A032094
- a(n) = prime(n)*prime(n+1) - prime(n+1).at n=24A037167
- Numbers k such that k*2^k + (k+1) is prime.at n=8A046845
- Partial sums of A014825, second partial sums of A002450.at n=6A052161
- a(n) contains n digits (either '6' or '9') and is divisible by 2^n.at n=3A053338
- Triangle T(n,k) read by rows, giving the number of n X n binary matrices with no zero rows or columns and with k=0..n^2 ones.at n=26A055599
- Triangle of numbers T(n,k) = T(n-1,k-1) + ((n+k-1)/k)*T(n-1,k), n >= 1, 1 <= k <= n, with T(n,1) = n!, T(n,n) = 1; read from right to left.at n=41A059369
- 1/n has period 4 in base 10.at n=36A069858
- Numbers which are either a divisor or a multiple of their 9's complement.at n=28A084020
- a(n) = (5*n+1)*(5*n+6).at n=19A085025
- Number of 3 X n (0,1) matrices such that each row and each column is nondecreasing or nonincreasing.at n=15A086113
- Triangle T(n, k) read by rows. T(n, k) is the number of lists of k unlabeled permutations whose total length is n.at n=49A090238
- Triangle T(r,n) read by rows: number of n X n (0,1)-matrices with exactly r entries equal to 1 and no zero row or columns.at n=39A104601
- Sum of ordered 3 prime sided prime triangles.at n=42A105100
- Let k be an integer consisting of m digits. Then k is a Pithy number if the k-th m-tuple in the decimal digits of Pi is k.at n=1A109514
- Numbers that look the same when rotated by 180 degrees, using only digits 0, 6 and 9.at n=9A111065
- Numbers that look the same when printed upside down.at n=20A111156
- Positive numbers that are not the sum of two squares and a positive Fibonacci number.at n=28A115176