9603
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 18
- Digital Root
- 9
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 1
Divisibility
- Divisor Count
- 12
- Divisor Sum
- 15288
- Proper Divisor Sum (Aliquot Sum)
- 5685
- 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
- 5760
- Möbius Function
- 0
- Radical
- 3201
- Omega Function (Ω)
- 4
- 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
- 122
- 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
- a(n) = (4*n+1)*(4*n+3).at n=24A001539
- a(n) = (n^2 - 1)*(n^2 - 3).at n=10A033596
- Denominators of continued fraction convergents to sqrt(178).at n=8A041329
- Denominators of continued fraction convergents to sqrt(712).at n=8A042371
- Numbers whose base-7 representation contains exactly four 6's.at n=3A043420
- Numbers n such that n^2 - 1 is expressible as the sum of two nonzero squares in exactly one way.at n=31A050797
- Numbers k such that k^6 == 1 (mod 7^4).at n=23A056092
- a(n) = n*7^n - 1.at n=3A064753
- Expansion of e.g.f. exp(x) * log(1+x)/(1-x).at n=6A073590
- a(n) = (prime(n)+1)*(prime(n+1)+1)/4.at n=43A079079
- Numbers k such that the largest prime power factor of k equals floor(sqrt(k)).at n=40A081807
- Smallest multiple of the n-th prime such that every partial sum is a square.at n=24A085039
- Numbers k such that both k and k+1 are sums of two positive cubes.at n=2A085323
- a(n) = 3*(2*n^2 + 1).at n=40A097803
- Positions of records for terms in the continued fraction of Soldner's constant (A070769).at n=12A099805
- Numbers which are the sum of two positive cubes and divisible by 11.at n=18A101852
- n+sigma(n)+sigma(sigma(n)) is a triangular number.at n=36A116015
- Positive numbers of the form 4*n^2 - 1 which are not semiprimes.at n=40A123754
- a(n) = lcm(prime(n)+1, prime(n+1)+1) / 2.at n=43A124691
- 3 times octagonal numbers: a(n) = 3*n*(3*n-2).at n=33A152751