10897
domain: N
Properties
Digital Properties
- Digit Count
- 5
- Digit Sum
- 25
- Digital Root
- 7
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 1
Divisibility
- Divisor Count
- 4
- Divisor Sum
- 11556
- Proper Divisor Sum (Aliquot Sum)
- 659
- Abundant Number
- no
- Perfect Number
- no
- Deficient Number
- yes
- Weird Number
- no
- Untouchable Number
- no
- Primitive Abundant
- no
Derived Values
- Euler's Totient
- 10240
- Möbius Function
- 1
- Radical
- 10897
- 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
- no
- Harshad Number
- no
- Narcissistic Number
- no
- Collatz Steps
- 161
- 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
- Pseudoprimes to base 40.at n=32A020168
- Strong pseudoprimes to base 40.at n=12A020266
- Numbers k such that the continued fraction for sqrt(k) has period 51.at n=17A020390
- Number of strong edge-subgraphs in Moebius ladder M_n.at n=3A020866
- Numbers k such that the continued fraction for sqrt(k) has odd period and if the last term of the periodic part is deleted the two central terms are both 23.at n=2A031611
- Cubic star numbers: a(n) = n^3 + 4*Sum_{i=0..n-1} i^2.at n=17A051673
- Number of 3 X n (0,1)-matrices with no consecutive 1's in any row or column.at n=7A051736
- a(n) = 10*n^2 + 7.at n=33A061722
- a(n) = 5^n mod n^5.at n=6A066609
- a(0) = 1; for n >= 1, a(n) = sum(binomial(n,k)^3*binomial(n+k,k+1)^2,k = 0..n)/n^2.at n=4A074649
- Interprimes which are of the form s*prime, s=17.at n=7A075292
- Numbers in ascending order formed by using all the digits of the next n numbers.at n=12A081991
- Table T(n,k) of the number of n X k matrices on {0,1} without adjacent 0's in any row or column.at n=38A089934
- Table T(n,k) of the number of n X k matrices on {0,1} without adjacent 0's in any row or column.at n=42A089934
- Number of 7 X n matrices with entries {0,1} without adjacent 0's in any row or column. 7th row of A089934.at n=2A089938
- Array read by antidiagonals: T(n,m) = number of independent sets in the grid graph P_n X P_m.at n=58A089980
- Array read by antidiagonals: T(n,m) = number of independent sets in the grid graph P_n X P_m.at n=62A089980
- Squarefree products of factors of Fermat numbers (A023394).at n=17A094358
- Odd interprimes divisible by 17.at n=36A124620
- Number of base 17 circular n-digit numbers with adjacent digits differing by 5 or less.at n=4A125380