14627
domain: N
Properties
Digital Properties
- Digit Count
- 5
- Digit Sum
- 20
- Digital Root
- 2
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 4
Divisibility
- Divisor Count
- 2
- Divisor Sum
- 14628
- 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
- 14626
- Möbius Function
- -1
- Radical
- 14627
- 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
- 120
- 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
- 1712
- Perfect Power
- no
- Smooth Number
- no
- Carmichael Number
- no
Classification
- Even
- no
- Odd
- yes
Appears in sequences
- Palindromic primes in base 8.at n=36A029976
- Numbers k such that 251*2^k+1 is prime.at n=14A032502
- Second member of a sexy prime quadruple: value of p+6 such that p, p+6, p+12 and p+18 are all prime.at n=28A046122
- Primes at which the difference pattern X24Y (X and Y >= 6) occurs in A001223.at n=33A052163
- Least prime in A001359 (lesser of twin primes) such that the distance (A053319) to the next twin is 6*n.at n=39A052350
- First term of weak prime quintets: p(m+1)-p(m) < p(m+2)-p(m+1) < p(m+3)-p(m+2) < p(m+4)-p(m+3).at n=33A054823
- Number of compositions of n such that two adjacent parts are not equal modulo 5.at n=19A062203
- 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 pattern = [2, 4, 6]; short notation = [246] d-pattern.at n=24A078847
- a(n) = r-th prime of the form (p-q)/(q-r) with r=prime(n+1), q=prime(n+2), and primes p > q.at n=48A089577
- Smallest member of a pair of consecutive twin prime pairs that have exactly n primes between them.at n=27A089637
- Twin prime pairs k-1 and k+1 such that the squares of both are present in A115557.at n=42A115560
- Smallest prime p such that p == 1 (mod prime(n)) and not p == 1 (mod k) for 2 < k < prime(n).at n=19A116605
- a(0)=1; for n>=1, a(n) = the largest prime dividing n*a(n-1) + 1.at n=41A134486
- Primes congruent to 7 mod 43.at n=40A142256
- Primes congruent to 25 mod 49.at n=35A142435
- Primes congruent to 52 mod 53.at n=32A142582
- Primes congruent to 52 mod 55.at n=38A142638
- Primes congruent to 54 mod 59.at n=31A142781
- Primes congruent to 48 mod 61.at n=27A142846
- Initial members of prime triples (p, p+2, p+6) for which also the sum 3p+8 is prime.at n=23A162001