9389
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 29
- Digital Root
- 2
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 4
Divisibility
- Divisor Count
- 4
- Divisor Sum
- 9660
- Proper Divisor Sum (Aliquot Sum)
- 271
- 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
- 9120
- Möbius Function
- 1
- Radical
- 9389
- 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
- 109
- 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
- no
- Odd
- yes
Appears in sequences
- Numbers that are the sum of 10 positive 7th powers.at n=43A003377
- Number of ordered triples of integers from [ 1..n ] with no global factor.at n=39A015631
- Numbers k such that the continued fraction for sqrt(k) has period 15.at n=42A020354
- First differences of A037260.at n=31A037261
- Discriminants of real quadratic fields with class number 2 and related continued fraction period length of 13.at n=19A051978
- Number of points in N^5 of norm <= n.at n=8A055404
- Number of points in N^n of norm <= 8.at n=5A055423
- Table, T(n,k) is the number of connected categories with n morphisms and k objects.at n=17A125699
- Numbers k such that the fractional part of (1024/1000)^k is greater than 1-(1/k).at n=9A153680
- Expansion of 1/(-32*x^5 + 8*x^3 - 4*x^2 - x + 1).at n=12A205961
- Numbers of the form ((6k+5)^2+9)/2 or 2(3k+4)^2-9.at n=44A214493
- Numbers ((binomial(4*p-1,2*p-1) mod p^5)-3)/p^3, where p = prime(n).at n=25A224952
- Total sum of the number of divisors of the element sum over all nonempty subsets of [n].at n=10A309403