1696
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 22
- Digital Root
- 4
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 3
Divisibility
- Divisor Count
- 12
- Divisor Sum
- 3402
- Proper Divisor Sum (Aliquot Sum)
- 1706
- Abundant Number
- yes
- Perfect Number
- no
- Deficient Number
- no
- Highly Composite
- no
- Weird Number
- no
- Untouchable Number
- no
- Primitive Abundant
- yes
Derived Values
- Euler's Totient
- 832
- Möbius Function
- 0
- Radical
- 106
- Omega Function (Ω)
- 6
- 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
- 16
- 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
- Inverse of reduced totient function.at n=40A002396
- Number of points on surface of truncated tetrahedron: a(n) = 14*n^2 + 2 for n > 0, a(0)=1.at n=11A005905
- Primitive pseudoperfect numbers.at n=28A006036
- Primitive nondeficient numbers.at n=23A006039
- Number of Hamiltonian cycles in P_5 X P_{2n}.at n=3A006865
- Number of regions in regular n-gon with all diagonals drawn.at n=15A007678
- Coordination sequence T2 for Zeolite Code BIK.at n=25A008048
- Coordination sequence T2 for Zeolite Code GOO.at n=28A008112
- a(n) is the concatenation of n and 6n.at n=15A009440
- Coordination sequence T3 for Zeolite Code CON.at n=29A009870
- Number of parts in all partitions of all the numbers in {1,2,...,n} into distinct parts.at n=21A015724
- Coordination sequence T3 for Zeolite Code OSI.at n=27A016432
- Number of subsets of { 1, ..., n } containing an A.P. of length 8.at n=16A018793
- Squares on infinite chessboard at n moves from center using a {2,3} fairy knight.at n=26A018839
- Cycle class sequence c(n) (the number of true cycles of length n in which a certain node is included) for zeolite VET = VPI-8 [Si17O34] starting with a T3 atom.at n=10A019249
- Numbers k such that the continued fraction for sqrt(k) has period 28.at n=28A020367
- Position of n^3 + (n+1)^3 in A003325.at n=48A024669
- Coordination sequence T8 for Zeolite Code MWW.at n=28A024993
- Numbers that are the sum of 4 nonzero squares in exactly 5 ways.at n=48A025361
- (d(n)-r(n))/5, where d = A026066 and r is the periodic sequence with fundamental period (0,3,1,0,1).at n=25A026068