14549
domain: N
Properties
Digital Properties
- Digit Count
- 5
- Digit Sum
- 23
- Digital Root
- 5
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 2
Divisibility
- Divisor Count
- 2
- Divisor Sum
- 14550
- 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
- 14548
- Möbius Function
- -1
- Radical
- 14549
- 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
- 19
- 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
- yes
- Mersenne Prime
- no
- Sophie Germain Prime
- no
- Safe Prime
- no
- Powerful Number
- no
- Achilles Number
- no
- Prime Index
- 1704
- Perfect Power
- no
- Smooth Number
- no
- Carmichael Number
- no
Classification
- Even
- no
- Odd
- yes
Appears in sequences
- Numbers k such that the continued fraction for sqrt(k) has period 69.at n=15A020408
- Numbers k such that the continued fraction for sqrt(k) has odd period and if the last term of the periodic part is deleted then there are a pair of central terms both equal to 9.at n=25A031422
- Discriminants of real quadratic fields with class number 1 and related continued fraction period length of 21.at n=18A051962
- Integer part of (Product(n^((1 + log(1 + i))/i^2), {i, 1, n})).at n=20A062486
- Nearest integer to (Product(n^((1 + log(1 + i))/i^2), {i, 1, n})).at n=20A062487
- Prime numbers occurring at integer Pythagorean distance (radius) from 1 in Ulam square prime-spiral. Primes on axes are excluded.at n=24A078765
- Initial term in sequence of four consecutive primes separated by 3 consecutive differences each <=6 (i.e., when d=2,4 or 6) and forming d-pattern=[2,6,4]; short d-string notation of pattern = [264].at n=19A078848
- Primes p such that the differences between the 5 consecutive primes starting with p are (2,6,4,2).at n=9A078948
- Near twin primes of order 12: twin primes p,p+2 such that p+12 and p+14 are primes.at n=41A079292
- Primes of the form [prime(n)*prime(n+1)+p]/2 with increasing p.at n=36A100558
- Lower bound twin primes such that their digital reverse is prime and a lower bound twin prime.at n=28A101783
- Primes p = prime(k) such that both p+2 and prime(k+6)-2 are prime numbers.at n=35A105413
- Primes p such that p + 2 and p*(p + 2) + 2 are primes.at n=30A108013
- Primes of the form 210k + 59.at n=34A140852
- Primes congruent to 35 mod 41.at n=39A142232
- Primes congruent to 15 mod 43.at n=37A142264
- Primes congruent to 26 mod 47.at n=38A142377
- Primes congruent to 45 mod 49.at n=38A142452
- Primes congruent to 27 mod 53.at n=30A142557
- Primes congruent to 35 mod 59.at n=31A142762