13093
domain: N
Properties
Digital Properties
- Digit Count
- 5
- Digit Sum
- 16
- Digital Root
- 7
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 1
Divisibility
- Divisor Count
- 2
- Divisor Sum
- 13094
- Proper Divisor Sum (Aliquot Sum)
- 1
- Abundant Number
- no
- Perfect Number
- no
- Deficient Number
- yes
- Weird Number
- no
- Untouchable Number
- no
- Primitive Abundant
- no
Derived Values
- Euler's Totient
- 13092
- Möbius Function
- -1
- Radical
- 13093
- Omega Function (Ω)
- 1
- Little Omega Function (ω)
- 1
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
- 138
- Smith Number
- no
- Vampire Number
- no
Primality
- Prime
- yes
- Composite Number
- no
- Semiprime
- no
- Squarefree Number
- yes
- Prime Power
- yes
- Prime Factorization
- no
- Twin Prime
- no
- Mersenne Prime
- no
- Sophie Germain Prime
- no
- Safe Prime
- no
- Powerful Number
- no
- Achilles Number
- no
- Prime Index
- 1557
- Perfect Power
- no
- Smooth Number
- no
- Carmichael Number
- no
Classification
- Even
- no
- Odd
- yes
Appears in sequences
- 11*n^2 + 11*n + 3.at n=34A006222
- Numbers k such that (3^k + 1)/4 is prime.at n=17A007658
- Numbers k such that the continued fraction for sqrt(k) has period 85.at n=11A020424
- Primes with property that when cubed all even digits occur together and all odd digits occur together.at n=23A030482
- Numbers p from A001125 such that 2*p-3 is prime.at n=19A063939
- a(n) = A078217(n)/n.at n=11A078811
- Initial term in sequence of four consecutive primes whose consecutive differences have d-pattern = [6, 4, 6]; short d-string notation for pattern = [646].at n=19A078856
- Diagonal of A088262.at n=37A088263
- Pentanacci analog of A055502.at n=14A113884
- Primes for which the weight as defined in A117078 is 23.at n=27A119504
- List of triples of strictly non-palindromic primes without an ordinary prime in between.at n=17A138358
- Primes of the form 210k + 73.at n=31A140857
- Primes congruent to 14 mod 41.at n=41A142211
- Primes congruent to 21 mod 43.at n=39A142270
- Primes congruent to 27 mod 47.at n=31A142378
- Primes congruent to 10 mod 49.at n=34A142422
- Primes congruent to 2 mod 53.at n=34A142532
- Primes congruent to 54 mod 59.at n=30A142781
- Primes congruent to 39 mod 61.at n=22A142837
- Primes p of the form 4*k+1 for which s=26 is the least positive integer such that s*p-(floor(sqrt(s*p)))^2 is a square.at n=12A145050