1295
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 17
- Digital Root
- 8
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 2
Divisibility
- Divisor Count
- 8
- Divisor Sum
- 1824
- Proper Divisor Sum (Aliquot Sum)
- 529
- Abundant Number
- no
- Perfect Number
- no
- Deficient Number
- yes
- Highly Composite
- no
- Weird Number
- no
- Untouchable Number
- no
- Primitive Abundant
- no
Derived Values
- Euler's Totient
- 864
- Möbius Function
- -1
- Radical
- 1295
- 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
- 39
- 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
- a(n) = 4*n^2 - 1.at n=18A000466
- Convolved Fibonacci numbers.at n=6A001873
- Generalized divisor function. Number of partitions of n with exactly three part sizes.at n=25A002134
- a(n) = n^2 + prime(n).at n=33A004232
- Number of restricted 3 X 3 matrices with row and column sums n.at n=25A005045
- a(n) = n*(n+2) = (n+1)^2 - 1.at n=35A005563
- Coordination sequence T1 for Zeolite Code LOV.at n=24A008134
- a(n) = n*nextprime(n).at n=35A013636
- Numbers k such that the periodic part of the continued fraction for sqrt(k) contains a single 1.at n=41A013648
- Numbers k such that phi(k) + 4 | sigma(k + 4).at n=48A015783
- Cycle class sequence c(n) (the number of true cycles of length n in which a certain node is included) for zeolite MOR = Mordenite Na8[Al8Si40O96].24H2O starting with a T2 atom.at n=10A019180
- Irreducible quadruple Euler sums of weight 2n+10 (verified for n <= 14).at n=39A019449
- Pseudoprimes to base 36.at n=15A020164
- Numbers whose base-6 representation is the juxtaposition of two identical strings.at n=34A020334
- Number of paths in Moebius ladder M_n.at n=5A020874
- Numbers with exactly 5 2's in their ternary expansion.at n=14A023703
- a(n) = 6^n - 1.at n=4A024062
- Index of 6^n within the sequence of the numbers of the form 6^i*7^j.at n=52A025716
- Number of partitions of n into distinct parts, the greatest being odd.at n=46A026837
- Number of partitions of n into distinct parts, the greatest being even.at n=46A026838