14007
domain: N
Properties
Digital Properties
- Digit Count
- 5
- Digit Sum
- 12
- Digital Root
- 3
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 1
Divisibility
- Divisor Count
- 16
- Divisor Sum
- 23040
- Proper Divisor Sum (Aliquot Sum)
- 9033
- Abundant Number
- no
- Perfect Number
- no
- Deficient Number
- yes
- Weird Number
- no
- Untouchable Number
- no
- Primitive Abundant
- no
Derived Values
- Euler's Totient
- 7392
- Möbius Function
- 1
- Radical
- 14007
- Omega Function (Ω)
- 4
- Little Omega Function (ω)
- 4
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
- 151
- Smith Number
- no
- Vampire Number
- no
Primality
- Prime
- no
- Composite Number
- yes
- Semiprime
- no
- Squarefree Number
- yes
- Prime Power
- no
- Prime Factorization
- no
- Twin Prime
- no
- Mersenne Prime
- no
- Sophie Germain Prime
- no
- Safe Prime
- no
- Powerful Number
- no
- Achilles Number
- no
- Perfect Power
- no
- Smooth Number
- no
- Carmichael Number
- no
Classification
- Even
- no
- Odd
- yes
Appears in sequences
- Exponent of least power of 2 having n consecutive 0's in its decimal representation.at n=8A006889
- Duplicate of A006889.at n=8A063899
- Binomial transform of a Pell convolution.at n=7A084151
- Number of maximal sum-free subsets of {1,2,...,n}.at n=34A121269
- a(n) = n^5-n^4-n^3-n^2-n.at n=7A152017
- Numbers n such that n^6 + 272 is prime.at n=17A161998
- a(n) = (2*n+1)*(6*n-1).at n=34A179741
- 0-sequence of reduction of (3n) by x^2 -> x+1.at n=13A192307
- Indices of primes in A001630.at n=10A241660
- Numbers k such that k and k+1 both have 16 divisors.at n=38A274359
- P-positions for the subtraction game whose allowed moves are the practical numbers (A005153).at n=35A275432
- Numbers which are palindromic in their Elias delta code representation.at n=34A281380
- Numbers whose squares have the first three digits the same as the next three digits.at n=35A353080
- a(n) is the least nonnegative integer k such that (k^2 + prime(n)^2)/2 is prime but (k^2 + prime(i)^2)/2 is not prime for i < n.at n=44A358804
- Nonnegative integers k such that (R(k) - 1)/(k + 1) is an integer, where R(k) is the digit reversal of k.at n=9A367593