3259
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 19
- Digital Root
- 1
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 2
Divisibility
- Divisor Count
- 2
- Divisor Sum
- 3260
- Proper Divisor Sum (Aliquot Sum)
- 1
- 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
- 3258
- Möbius Function
- -1
- Radical
- 3259
- Omega Function (Ω)
- 1
- Little Omega Function (ω)
- 1
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
- 48
- Smith Number
- no
- Vampire Number
- no
Primality
- Prime
- yes
- Composite Number
- no
- Semiprime
- no
- Squarefree Number
- yes
- Prime Power
- yes
- Prime Factorization
- no
- Twin Prime
- yes
- Mersenne Prime
- no
- Sophie Germain Prime
- no
- Safe Prime
- no
- Powerful Number
- no
- Achilles Number
- no
- Prime Index
- 461
- Perfect Power
- no
- Smooth Number
- no
- Carmichael Number
- no
Classification
- Even
- no
- Odd
- yes
Appears in sequences
- Primes p such that the multiplicative order of 2 modulo p is (p-1)/3.at n=36A001133
- a(n) = ceiling(1000*log(n)).at n=25A004242
- Number of 4-connected polyhedral graphs with n faces.at n=13A007026
- Sum of indices of windows of trapezoidal maps.at n=9A007872
- Coordination sequence T2 for Zeolite Code VSV.at n=36A009915
- Odd primes such that (3p+1)/2 and 3p+4 are also prime.at n=30A014223
- Primes p such that 3*p + 4 and 9*p + 16 are also prime.at n=38A023247
- Primes that remain prime through 2 iterations of function f(x) = 9x + 8.at n=42A023267
- Numbers k such that the continued fraction for sqrt(k) has even period and if the last term of the periodic part is deleted the central term is 57.at n=1A031555
- Numbers k such that the period of the continued fraction for sqrt(k) contains exactly 42 ones.at n=5A031810
- Lucky numbers with size of gaps equal to 16 (upper terms).at n=9A031899
- Lower prime of a difference of 12 between consecutive primes.at n=32A031930
- Numbers k such that 165*2^k+1 is prime.at n=42A032459
- Four consecutive primes whose 'last digit cycle' equals {1,3,7,9}.at n=43A032591
- Primes of form x^2+26*y^2.at n=34A033218
- Primes of form x^2+66*y^2.at n=25A033242
- Coordination sequence T1 for Zeolite Code CFI.at n=38A033599
- Number of partitions of n with equal nonzero number of parts congruent to each of 0, 1 and 3 (mod 5).at n=51A035583
- Row sums of triangle K(m, n), inverse to triangle T(m,n) in A020921.at n=11A038200
- Primes with indices that are primes with prime indices.at n=23A038580