14479
domain: N
Properties
Digital Properties
- Digit Count
- 5
- Digit Sum
- 25
- Digital Root
- 7
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 2
Divisibility
- Divisor Count
- 2
- Divisor Sum
- 14480
- 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
- 14478
- Möbius Function
- -1
- Radical
- 14479
- 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
- 45
- 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
- 1697
- Perfect Power
- no
- Smooth Number
- no
- Carmichael Number
- no
Classification
- Even
- no
- Odd
- yes
Appears in sequences
- Wagstaff numbers: numbers k such that (2^k + 1)/3 is prime.at n=28A000978
- Number of paraffins.at n=38A005998
- Primes that remain prime through 3 iterations of function f(x) = 7x + 6.at n=23A023290
- a(n) = s(1)t(n) + s(2)t(n-1) + ... + s(k)t(n+1-k), where k = [ (n+1)/2 ], s = (composite numbers), t = (odd natural numbers).at n=34A024590
- Numbers k such that the period of the continued fraction for sqrt(k) contains exactly 90 ones.at n=7A031858
- Numerators of continued fraction convergents to sqrt(295).at n=6A041554
- Primes base 10 that remain primes in five bases b, 2<=b<=10, expansions interpreted as decimal numbers.at n=42A052029
- Numbers k such that 2^k + 1 has just two distinct prime factors.at n=48A066263
- Leading diagonal of triangle in A072467.at n=18A072468
- Numbers k such that 2^k + 1 is the product of two distinct primes.at n=46A073936
- Primes p such that the sum of the digits of p is not prime, but the sum of the squares of the digits of p is prime.at n=21A091362
- Primes p such that the sum of the digits of p is not prime, but the sum of the cubes of the digits of p is prime.at n=16A091365
- Numbers k such that 2^k + 1 is a semiprime.at n=47A092559
- Primes of the form 47*k + 3.at n=38A100494
- Numbers k such that (3*2^k - 1)^2 - 2 is prime.at n=13A100911
- Indices of prime Jacobsthal numbers.at n=29A107036
- Smallest prime p = n*m + 1 that divides m^m - 1 for some m > 1.at n=37A125556
- Primes that are simultaneously of the forms 24i+7 and 7j+24.at n=36A137657
- Primes of the form 55x^2+10xy+199y^2.at n=24A140632
- Primes congruent to 10 mod 53.at n=30A142540