14869
domain: N
Properties
Digital Properties
- Digit Count
- 5
- Digit Sum
- 28
- Digital Root
- 1
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 3
Divisibility
- Divisor Count
- 2
- Divisor Sum
- 14870
- 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
- 14868
- Möbius Function
- -1
- Radical
- 14869
- 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
- 133
- 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
- 1742
- 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 88 ones.at n=11A031856
- Denominators of continued fraction convergents to sqrt(873).at n=11A042687
- Numbers whose base-5 representation contains exactly three 3's and three 4's.at n=11A045307
- Primes whose sum of digits is the perfect number 28.at n=36A048517
- Primes p such that p and p^2 have same digit sum.at n=25A058370
- Primes p such that x^59 = 2 has no solution mod p.at n=33A059312
- Numbers k such that the k-th triangular number contains only digits {0,1,5}.at n=22A119040
- Primes p such that p*q-p-q and p*q+p+q are prime where q=nextprime(p).at n=32A128548
- The upper twin prime whose lower member has a prime index.at n=35A129782
- Antidiagonal sums of triangle A136630, omitting antidiagonals of all zeros.at n=7A136631
- Primes congruent to 27 mod 41.at n=39A142224
- Primes congruent to 17 mod 47.at n=37A142368
- Primes congruent to 22 mod 49.at n=39A142432
- Primes congruent to 29 mod 53.at n=34A142559
- Primes congruent to 46 mod 61.at n=29A142844
- Primes with distinct nonprime digits.at n=41A155024
- Smallest prime with n distinct nonprime decimal digits.at n=3A158715
- Number of nX1 1..6 arrays with every element value z a city block distance of exactly z from another element value z.at n=13A209055
- Natural growth of an aliquot sequence driven by a perfect number 2^(p-1)*((2^p)-1), but starting at 11.at n=15A215778
- Primes congruent to 1 mod 59.at n=34A216315