9653
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 23
- Digital Root
- 5
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 2
Divisibility
- Divisor Count
- 6
- Divisor Sum
- 11286
- Proper Divisor Sum (Aliquot Sum)
- 1633
- 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
- 8232
- Möbius Function
- 0
- Radical
- 1379
- 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
- 73
- 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
- no
- Odd
- yes
Appears in sequences
- Numbers k such that k | 6^k + 1.at n=9A015953
- n-th diagonal sum of right justified array T given by A027960.at n=18A027976
- Least number k such that k has n anti-divisors.at n=37A066464
- Numbers k such that Euler phi(k) / Carmichael lambda(k) = 14.at n=19A066696
- Sum of the quadratic residues of prime(n).at n=44A076409
- a(n) = smallest k where (10^k+1)=0 mod prime(n)^2, or 0 if no such k exists.at n=44A086981
- a(n+3) = 3*a(n+2) + 5*a(n+1) + a(n), a(0) = 0, a(1) = 1, a(2) = 8.at n=7A110527
- Number of permutations of length n which avoid the patterns 1234, 1243, 3421.at n=10A116762
- Sum of the quadratic nonresidues of prime(n).at n=44A125615
- 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, -1, 0), (0, 1, -1), (1, 0, -1), (1, 1, 1)}.at n=8A149533
- a(n) = 4*n^2 + 73*n + 333.at n=39A157431
- Number of binary strings of length n with equal numbers of 00100 and 10011 substrings.at n=14A164241
- Numbers of the form prime(n)*(prime(n)-1)/4.at n=20A171555
- Molecular topological indices of the pan graphs.at n=25A192836
- Q-residue of the (n+1)st Fibonacci polynomial, where Q is the triangular array (t(i,j)) given by t(i,j)=1. (See Comments.)at n=11A193649
- Record values in A200506.at n=8A200440
- a(n) = binary code (shown here in decimal) of the position of natural number n in the beanstalk-tree A218778.at n=33A218614
- a(n) = binary code (shown here in decimal) of the position of the predecessor of the natural number pair (2n,2n+1) in the compact beanstalk-tree A218782.at n=17A218790
- Number of espalier polycubes of a given volume in dimension 3.at n=27A229915
- Number of partitions p of n such that (number of even numbers in p) >= 2*(number of odd numbers in p).at n=44A241644