14867
domain: N
Properties
Digital Properties
- Digit Count
- 5
- Digit Sum
- 26
- Digital Root
- 8
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 4
Divisibility
- Divisor Count
- 2
- Divisor Sum
- 14868
- 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
- 14866
- Möbius Function
- -1
- Radical
- 14867
- 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
- yes
- Mersenne Prime
- no
- Sophie Germain Prime
- no
- Safe Prime
- yes
- Powerful Number
- no
- Achilles Number
- no
- Prime Index
- 1741
- Perfect Power
- no
- Smooth Number
- no
- Carmichael Number
- no
Classification
- Even
- no
- Odd
- yes
Appears in sequences
- Primes prime(k) for which A049076(k) = 3.at n=41A049079
- Endpoints for runs of consecutive primes mentioned in A054691.at n=8A054692
- Numbers k that, when expressed in base 6 and then interpreted in base 7, give a multiple of k.at n=10A062934
- Primes of the form sum 6d/(2 + mu(d)) for some k and all d dividing k.at n=28A069548
- a(n) = prime(2*n*(n+1)+1).at n=29A078746
- Let a(1)=1; for n>1, a(n)=nextprime((3/2)*a(n-1)).at n=21A084571
- Prime(prime(n)) when prime(prime(n)) and n are twin primes.at n=15A087394
- "Secondary twin primes": a(n) = A006450(A096477(n)).at n=35A096479
- A Chebyshev transform of Fib(2n+2).at n=12A099444
- Primes p such that little googol - p is prime.at n=32A108256
- Partial sums of primes that are not Chen primes (starting with 1).at n=40A118483
- Numbers such that the sum of the factorials of the digits of the cube is a square.at n=40A126076
- Primes p for which Sum_{1 <= n < p} (n!|p) == 0 (mod p), where (n!|p) is the Legendre symbol.at n=28A131652
- Primes congruent to 32 mod 43.at n=36A142281
- Primes congruent to 15 mod 47.at n=39A142366
- Primes congruent to 20 mod 49.at n=38A142431
- Primes congruent to 27 mod 53.at n=31A142557
- Primes congruent to 58 mod 59.at n=28A142785
- Primes congruent to 44 mod 61.at n=27A142842
- Primes p such that continued fraction of (1 + sqrt(p))/2 has period 14: primes in A146337.at n=14A146359