17392
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
- 5
Divisibility
- Divisor Count
- 10
- Divisor Sum
- 33728
- Proper Divisor Sum (Aliquot Sum)
- 16336
- Abundant Number
- no
- Perfect Number
- no
- Deficient Number
- yes
- Weird Number
- no
- Untouchable Number
- no
- Primitive Abundant
- no
Derived Values
- Euler's Totient
- 8688
- Möbius Function
- 0
- Radical
- 2174
- Omega Function (Ω)
- 5
- 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
- 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
- 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
- yes
- Odd
- no
Appears in sequences
- a(n) = d(n)/2, where d = A026040.at n=44A026041
- Numbers whose base-4 representation contains exactly four 0's and three 3's.at n=24A045084
- Numbers k such that 2^k - 5 is prime.at n=33A059608
- a(n) = n*(n^2 + 2*n - 1)/2.at n=31A127736
- Ulam's spiral (NNW spoke).at n=33A143860
- Number of non-Fibonacci parts in all partitions of n.at n=31A144116
- a(n) = 512*n - 16.at n=33A157447
- Number of length n 0..7 arrays with each partial sum starting from the beginning no more than sqrt(2) standard deviations from its mean.at n=4A244902
- Number of length 5 0..n arrays with each partial sum starting from the beginning no more than sqrt(2) standard deviations from its mean.at n=6A244908
- 37-gonal numbers: a(n) = n*(35*n-33)/2.at n=32A282852
- Hyper-Wiener index of body-centered cubic grid cells in a row.at n=6A302351
- Square array A(n,k), n >= 0, k >= 0, read by antidiagonals downwards, where column k is the expansion of e.g.f. B(x)^k, where B(x) is the e.g.f. of A384810.at n=33A384813
- Number of finite regions in a complete bipartite graph where the n vertices of each part are placed on the vertices, and on opposite sides, of a regular 2n-gon.at n=16A392972