9298
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 28
- Digital Root
- 1
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 3
Divisibility
- Divisor Count
- 4
- Divisor Sum
- 13950
- Proper Divisor Sum (Aliquot Sum)
- 4652
- 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
- 4648
- Möbius Function
- 1
- Radical
- 9298
- 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
- yes
- Harshad Number
- no
- Narcissistic Number
- no
- Collatz Steps
- 135
- Smith Number
- no
- 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
- Numbers k such that the continued fraction for sqrt(k) has period 35.at n=19A020374
- Base 8 digits are, in order, the first n terms of the periodic sequence with initial period 2,2,1.at n=4A037565
- Numbers whose concatenation of prime factors (with multiplicity) is a square.at n=25A038693
- Base-8 palindromes that start with 2.at n=35A043022
- Numbers having four 2's in base 8.at n=5A043432
- Numbers k such that 171*2^k-1 is prime.at n=28A050837
- Numbers k such that 10^k + 4*R_k + 5 is prime, where R_k = 11...1 is the repunit (A002275) of length k.at n=16A102935
- Numbers useful in computing A(k), the largest possible magnitude of the x^k coefficient in a cyclotomic polynomial.at n=3A140671
- a(1)=4. a(n+1) = a(n)+d-1, where d is the smallest prime divisor of (a(n)-1)*(a(n)+1).at n=36A177929
- Semiprimes that are the sum of 10 consecutive primes.at n=13A185347
- Number of n X 2 arrays of the minimum value of corresponding elements and their horizontal or antidiagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and nonincreasing columns, 0..2 n X 2 array.at n=20A219846
- Sum of the largest parts in the partitions of 3n into 3 parts.at n=18A236370
- (2^(p-1) modulo p^2) + (3^(p-1) modulo p^2), where p = prime(n).at n=22A240987
- Number of length n arrays of permutations of 0..n-1 with each element moved by -4 to 4 places and exactly two more elements moved upwards than downwards.at n=9A263783
- Take a squarefree semiprime and take the difference of its prime factors. If it is a squarefree semiprime repeat the process. Sequence lists the squarefree semiprimes that generate other squarefree semiprimes only in the first k steps of this process. Case k = 4.at n=18A296811
- G.f. A(x) satisfies: A(x) = 1 + x*A(x^2)/(1 - x)^2.at n=34A307889
- Number of integer partitions of the n-th semiprime into semiprimes.at n=35A338902
- Even semiprimes that are the exact average of six consecutive odd semiprimes.at n=42A365202