17234
domain: N
Properties
Digital Properties
- Digit Count
- 5
- Digit Sum
- 17
- Digital Root
- 8
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 4
Divisibility
- Divisor Count
- 8
- Divisor Sum
- 29568
- Proper Divisor Sum (Aliquot Sum)
- 12334
- Abundant Number
- no
- Perfect Number
- no
- Deficient Number
- yes
- Weird Number
- no
- Untouchable Number
- no
- Primitive Abundant
- no
Derived Values
- Euler's Totient
- 7380
- Möbius Function
- -1
- Radical
- 17234
- 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
- yes
- Harshad Number
- no
- Narcissistic Number
- no
- Collatz Steps
- 172
- 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
- yes
- Odd
- no
Appears in sequences
- Total number of triangles visible in regular n-gon with all diagonals drawn.at n=11A006600
- Smallest m such that A065623(m) = n.at n=43A065624
- Starting positions of strings of three 7's in the decimal expansion of Pi.at n=16A083631
- Diagonal of array A085205.at n=14A085228
- Where record values of A119999 occur.at n=41A120001
- Conjectured lower bound for the number of spheres of radius 1 that can be packed in a sphere of radius n.at n=27A121346
- Number of permutations of length n which avoid the patterns 1324 and 4231.at n=9A165528
- Partial sums of A066186.at n=16A182738
- Number of nondecreasing arrangements of n+3 numbers in 0..4 with each number being the sum mod 5 of three others.at n=19A183899
- Number of partitions of n having no parts with multiplicity 9.at n=36A184644
- Number of n X 1 0..7 arrays with values 0..7 introduced in row major order and each element equal to at least one horizontal or vertical neighbor.at n=15A198655
- Number of partitions of [n] that contain no isolated singletons.at n=16A211694
- Positions of 3's in A234323.at n=40A234804
- Triangle T(n,k), n>=0, 0<=k<=n, read by rows: row n is the inverse binomial transform of the n-th row of array A255961, which has the Euler transform of (j->j*k) in column k.at n=59A257673
- Number of sets of nonempty words with a total of n letters over nonary alphabet such that within each prefix of a word every letter of the alphabet is at least as frequent as the subsequent alphabet letter.at n=10A293748
- Duplicate of A211694.at n=16A303586
- Numbers that are the sum of 4 nonzero 4th powers in more than one way.at n=35A309763
- Column k=4 of triangle A257673.at n=6A321949
- Numbers that are the sum of four fourth powers in exactly two ways.at n=34A344193
- Number of involutions of doubly alternating Baxter permutations of length n.at n=24A347546