9634
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 22
- Digital Root
- 4
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 4
Divisibility
- Divisor Count
- 4
- Divisor Sum
- 14454
- Proper Divisor Sum (Aliquot Sum)
- 4820
- 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
- 4816
- Möbius Function
- 1
- Radical
- 9634
- Omega Function (Ω)
- 2
- 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
- 122
- Smith Number
- yes
- Vampire Number
- no
Primality
- Prime
- no
- Composite Number
- yes
- Semiprime
- yes
- Squarefree Number
- yes
- 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
- Co-growth function of a certain group.at n=9A007985
- Neither square nor square + prime.at n=19A020495
- Number of partitions satisfying cn(0,5) <= cn(1,5) + cn(2,5) + cn(3,5) and cn(0,5) <= cn(4,5) + cn(2,5) + cn(3,5).at n=33A039845
- Larger of Smith brothers.at n=7A050220
- A Diaconis-Mosteller approximation to the Birthday problem function.at n=42A050255
- Centered 13-gonal numbers.at n=38A069126
- Smallest squarefree integer k such that Q(sqrt(k)) has class number n.at n=23A081363
- a(n) = smallest m >= 1 such that Sum_{k=1..m} log(k)/k >= n.at n=42A092753
- Number of 5k+2 primes (A030432) in range [2^n,2^(n+1)].at n=18A095022
- Number of partitions of n in which the number of parts is relatively prime to n.at n=34A102628
- a(n) = 4*a(n-1) - a(n-2) - 2*(-1)^n, a(0) = 1, a(1) = 4.at n=7A105968
- Semiprimes in A056105.at n=23A113519
- Number of -n..n arrays x(0..5) of 6 elements with zero sum and no element more than one greater than the previous.at n=8A199850
- Number of nX3 0..2 arrays with every row and column running average nondecreasing rightwards and downwards, and the number of instances of each value within one of each other.at n=9A200772
- Total number of parts k in all partitions of n such that k does not divide n.at n=27A209313
- Beach-Williams Pell numbers of type 2p (p prime).at n=8A212074
- Number of purely crossing + partitions of [n].at n=11A268815
- Numbers k such that 4*10^k - 87 is prime.at n=18A284191
- Irregular triangle read by rows: T(n, k) = number of ways to tile an n X n X n triangular area with k 2 X 2 X 2 triangular tiles and an appropriate number (= n^2-4*k) of 1 X 1 X 1 tiles.at n=48A286436
- Nonsquares congruent to 1 or 2 mod 4 which are not the sum of a prime and a square.at n=21A317966