14311
domain: N
Properties
Digital Properties
- Digit Count
- 5
- Digit Sum
- 10
- Digital Root
- 1
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 2
Divisibility
- Divisor Count
- 4
- Divisor Sum
- 15624
- Proper Divisor Sum (Aliquot Sum)
- 1313
- Abundant Number
- no
- Perfect Number
- no
- Deficient Number
- yes
- Weird Number
- no
- Untouchable Number
- no
- Primitive Abundant
- no
Derived Values
- Euler's Totient
- 13000
- Möbius Function
- 1
- Radical
- 14311
- Omega Function (Ω)
- 2
- Little Omega Function (ω)
- 2
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
- yes
- Harshad Number
- no
- Narcissistic Number
- no
- Collatz Steps
- 50
- Smith Number
- no
- Vampire Number
- no
Primality
- Prime
- no
- Composite Number
- yes
- Semiprime
- yes
- 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
- Associated Mersenne numbers.at n=25A001351
- a(n) = s(1)t(n) + s(2)t(n-1) + ... + s(k)t(n-k+1), where k = [ n/2 ], s = (natural numbers), t = A000201 (lower Wythoff sequence).at n=45A024863
- Number of partitions of n such that cn(0,5) = cn(2,5) <= cn(3,5) = cn(4,5) < cn(1,5).at n=62A036847
- Least k such that k*10^n+1, k*10^n+3, k*10^n+7 and k*10^n+9 are all prime.at n=6A064281
- 1000000n+1, 1000000n+3, 1000000n+7, 1000000n+9 are all primes.at n=0A064965
- Numbers k (with no zero digits) with property that k raised to the product of its digits plus the sum of its digits is prime.at n=14A098797
- Number of imprimitive (periodic) n-bead necklaces with beads of 2 colors when turning over is allowed.at n=38A115119
- The first 10 digits of the fourth root of n contain the digits 0-9.at n=1A119519
- Ulam's spiral (NNE spoke).at n=30A143861
- Nonprime numbers with all divisors starting and ending with digit 1.at n=21A208261
- Expansion of 1/((1-x)^2*(1-2*x)*(1-4*x)).at n=6A227209
- a(n) = floor(5*prime(n)^2 / 4).at n=27A246010
- Number of length-4 0..n arrays with no repeated value unequal to the previous repeated value plus one mod n+1.at n=9A268945
- Numbers k such that (10^k - 79)/3 is prime.at n=16A293853
- Composite numbers k with its divisors having the property that the last digit of every divisor is the same as the first digit of the next divisor.at n=24A307858
- The number of closed lambda calculus terms of size n that have a normal form, where size(lambda M)=2+size(M), size(M N)=2+size(M)+size(N), and size(V)=1+i for a variable V bound by the i-th enclosing lambda.at n=24A333958
- a(n) = Sum_{k=1..n} binomial(k+2,2) * floor(n/k).at n=38A366984
- Centered 10-gonal numbers which are products of two primes.at n=23A367792