2594
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 20
- Digital Root
- 2
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 2
Divisibility
- Divisor Count
- 4
- Divisor Sum
- 3894
- Proper Divisor Sum (Aliquot Sum)
- 1300
- 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
- 1296
- Möbius Function
- 1
- Radical
- 2594
- 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
- 102
- 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
- yes
- Odd
- no
Appears in sequences
- Number of points on surface of tetrahedron; coordination sequence for sodalite net (equals 2*n^2+2 for n > 0).at n=36A005893
- Poincaré series [or Poincare series] of Lie algebra associated with a certain braid group.at n=11A007991
- Coordination sequence T1 for Zeolite Code ACO, ASV, EDI, and THO.at n=36A008084
- Coordination sequence T2 for Zeolite Code THO.at n=36A008239
- Coordination sequence for body-centered tetragonal lattice.at n=18A008527
- Coordination sequence T6 for Zeolite Code DFO.at n=39A009880
- Coordination sequence for NiAs(2), As position.at n=24A009945
- Coordination sequence for NiAs(2), Ni position.at n=24A009946
- a(0) = 1, a(n) = 18*n^2 + 2 for n>0.at n=12A010008
- a(0) = 1, a(n) = 32*n^2 + 2 for n > 0.at n=9A010021
- Nearest integer to Gamma(n+2/3).at n=7A014517
- Cycle class sequence c(n) (the number of true cycles of length n in which a certain node is included) for zeolite RSN = RUB-17 K4Na12[Zn8Si28O72].18H2O starting with a T1 atom.at n=11A019220
- Place where n-th 1 occurs in A023123.at n=43A022785
- Index of 10^n within the sequence of the numbers of the form 3^i*10^j.at n=49A025741
- Number of partitions of n that do not contain 3 as a part.at n=30A027337
- 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 50.at n=9A031548
- Numbers with exactly five distinct base-7 digits.at n=22A031984
- Duplicate of A008084.at n=36A033598
- Numerators of continued fraction convergents to sqrt(889).at n=6A042718
- Base-6 palindromes that start with 2.at n=14A043011