17347
domain: N
Properties
Digital Properties
- Digit Count
- 5
- Digit Sum
- 22
- Digital Root
- 4
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 3
Divisibility
- Divisor Count
- 8
- Divisor Sum
- 20160
- Proper Divisor Sum (Aliquot Sum)
- 2813
- Abundant Number
- no
- Perfect Number
- no
- Deficient Number
- yes
- Weird Number
- no
- Untouchable Number
- no
- Primitive Abundant
- no
Derived Values
- Euler's Totient
- 14760
- Möbius Function
- -1
- Radical
- 17347
- Omega Function (Ω)
- 3
- 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
- 141
- 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
- Trajectory of 7 under map x --> x + (x-with-digits-reversed).at n=10A033650
- Trajectory of 19 under map x->x + (x-with-digits-reversed).at n=8A033655
- Trajectory of 23 under map x->x + (x-with-digits-reversed).at n=9A033657
- Trajectory of 29 under map x->x + (x-with-digits-reversed).at n=7A033660
- Trajectory of 89 under map x->x + (x-with-digits-reversed).at n=5A033670
- Numbers whose base-4 representation contains exactly four 0's and three 3's.at n=22A045084
- Numbers n for which there are exactly eight k such that n = k + reverse(k).at n=33A072432
- Binomial transform of Jacobsthal oblongs.at n=7A084177
- Expansion of e.g.f. exp(x)/(1-x-x^2).at n=6A110313
- Numerator of Euler(n, 4/27).at n=3A157098
- a(n) = 10*n^2 - 7*n + 1.at n=42A158186
- Composite numbers n such that 8*n^2-2*n-1 divides the primitive part U(n) of Fibonacci(n).at n=36A159234
- Number A(n,k) of standard Young tableaux for partitions of n into distinct parts with largest part <= k; triangle A(n,k), k>=0, 0<=n<=k*(k+1)/2, read by columns.at n=53A219272
- Records in A233208.at n=10A233209
- Numbers n such that n^10+10 is prime.at n=26A239347
- Number of partitions of n with difference -6 between the number of odd parts and the number of even parts, both counted without multiplicity.at n=42A242686
- Numerators of coefficients in expansion of exp(x)/(1 - x - x^2).at n=6A279334
- The number of overpartitions of n where the number of non-overlined parts is at least two more than the number of overlined parts.at n=24A340668
- Numbers that are the sum of seven fourth powers in six or more ways.at n=10A345572
- Numbers that are the sum of seven fourth powers in seven or more ways.at n=1A345573