14419
domain: N
Properties
Digital Properties
- Digit Count
- 5
- Digit Sum
- 19
- Digital Root
- 1
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 3
Divisibility
- Divisor Count
- 2
- Divisor Sum
- 14420
- 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
- 14418
- Möbius Function
- -1
- Radical
- 14419
- 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
- no
- Harshad Number
- no
- Narcissistic Number
- no
- Collatz Steps
- 71
- 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
- 1690
- Perfect Power
- no
- Smooth Number
- no
- Carmichael Number
- no
Classification
- Even
- no
- Odd
- yes
Appears in sequences
- Numbers k such that the period of the continued fraction for sqrt(k) contains exactly 66 ones.at n=17A031834
- Numbers whose set of base-15 digits is {1,4}.at n=27A032827
- Number of partitions of n with equal number of parts congruent to each of 0 and 2 (mod 5).at n=45A035553
- Primes base 10 that remain primes in five bases b, 2<=b<=10, expansions interpreted as decimal numbers.at n=41A052029
- a(n), for n > 1, equals the least prime p such that p - a(n-1) is a cube, a(1)=2.at n=22A076201
- Row sums in triangle A081994.at n=21A081997
- Sums of antidiagonals of A099233.at n=12A099236
- a(n) = 1 + 2 * least i such that A103507(i)=n+1, 0 if no such i exists.at n=40A103508
- Number of quaternary rooted identity (distinct subtrees) trees with n nodes.at n=15A116380
- Number of binary words whose (unique) decreasing Lyndon decomposition is into Lyndon words each with an even number of 1's; EULER transform of A051841.at n=17A123915
- Primes p such that p, p+4 and p+12 are consecutive primes.at n=38A139385
- Primes congruent to 28 mod 41.at n=41A142225
- Primes congruent to 14 mod 43.at n=38A142263
- Primes congruent to 37 mod 47.at n=36A142388
- Primes congruent to 13 mod 49.at n=41A142425
- Primes congruent to 3 mod 53.at n=37A142533
- Primes congruent to 9 mod 55.at n=36A142608
- Primes congruent to 55 mod 57.at n=41A142699
- Primes congruent to 23 mod 59.at n=32A142750
- Primes congruent to 23 mod 61.at n=28A142821