14841
domain: N
Properties
Digital Properties
- Digit Count
- 5
- Digit Sum
- 18
- Digital Root
- 9
- Palindromic Number
- yes
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 3
Divisibility
- Divisor Count
- 12
- Divisor Sum
- 22932
- Proper Divisor Sum (Aliquot Sum)
- 8091
- Abundant Number
- no
- Perfect Number
- no
- Deficient Number
- yes
- Weird Number
- no
- Untouchable Number
- no
- Primitive Abundant
- no
Derived Values
- Euler's Totient
- 9216
- Möbius Function
- 0
- Radical
- 4947
- Omega Function (Ω)
- 4
- Little Omega Function (ω)
- 3
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
- 76
- Smith Number
- no
- Vampire Number
- no
Primality
- Prime
- no
- Composite Number
- yes
- Semiprime
- no
- Squarefree Number
- no
- 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
- Numbers k such that k and k+1 have same sum of divisors.at n=9A002961
- Convolution of Fibonacci numbers and (1, prime(1), prime(2), ...).at n=16A023608
- a(n) = n^3 + (n+1)^3 + (n+2)^3.at n=16A027602
- Palindromic lucky numbers.at n=39A031161
- Lucky numbers that are both palindromic and nonprime.at n=32A031880
- Palindromic and divisible by 9.at n=27A045644
- Numbers k such that k and k+1 have the same sum but an unequal number of divisors.at n=5A054007
- Totient(n) and cototient(n) are squares.at n=41A054754
- Numbers k such that phi(k) and cototient(k) are squares but k is not in A054755.at n=10A054756
- Numbers k such that sigma(k) divides sigma(k+1), where sigma(k) is sum of positive divisors of k.at n=21A058072
- Numbers k such that sigma(k+1) divides sigma(k), where sigma(k) is the sum of positive divisors of k.at n=23A058073
- Numbers k such that sigma(k)*omega(k) = sigma(k+1)*omega(k+1), where omega(k) is the number of distinct prime divisors of n (A001221).at n=5A063071
- Numbers k such that gcd(sigma(k), sigma(k+1)) > k.at n=34A066025
- Weight distribution of [97,49,15] binary quadratic-residue (or QR) code.at n=17A069646
- a(n) = n*(n+1)*(n^2 + 2)/6.at n=17A071239
- Numbers n for which there are exactly five k such that n = k + reverse(k).at n=31A072429
- Partition the nonnegative integers into minimal groups whose sums are palindromes; this sequence gives the sums.at n=30A072482
- Numbers k such that phi(k) divides sigma(k+1) - sigma(k).at n=38A072611
- Palindromes in A082939.at n=14A082940
- Molien series for action of SL(3,C) on ternary forms of degree 4.at n=30A083024