3446
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
- 4
Divisibility
- Divisor Count
- 4
- Divisor Sum
- 5172
- Proper Divisor Sum (Aliquot Sum)
- 1726
- 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
- 1722
- Möbius Function
- 1
- Radical
- 3446
- 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
- 56
- 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 certain self-avoiding walks with n steps on square lattice (see reference for precise definition).at n=15A006144
- Coordination sequence T4 for Zeolite Code DOH.at n=36A008081
- Coordination sequence T1 for Zeolite Code MON.at n=36A008181
- If a, b in sequence, so is ab+10.at n=23A009368
- Numbers k such that the continued fraction for sqrt(k) has period 70.at n=6A020409
- Dying rabbits: a(n) = a(n-1) + a(n-2) - a(n-8).at n=19A023438
- a(n) = T(2n, n-2), T given by A026780.at n=4A026783
- 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 58.at n=9A031556
- Numbers k such that the period of the continued fraction for sqrt(k) contains exactly 30 ones.at n=15A031798
- a(n) = [ Gamma(sqrt(n)) ].at n=60A033295
- Number of partitions of n with equal nonzero number of parts congruent to each of 0 and 1 (mod 3).at n=41A035537
- Numbers whose sum of reciprocals of digits is the reciprocal of an integer.at n=35A037264
- Sum of reciprocals of digits = 1.at n=17A037268
- Coordination sequence T4 for Zeolite Code ESV.at n=39A038411
- a(1) = 1, a(m+1) = 2*Sum_{k=1..floor((m+1)/2)} a(k).at n=43A039722
- a(1) = 1, a(m+1) = 2*Sum_{k=1..floor((m+1)/2)} a(k).at n=44A039722
- Numbers having three 6's in base 8.at n=11A043447
- Numbers n such that string 4,6 occurs in the base 10 representation of n but not of n-1.at n=37A044378
- Numbers n such that string 4,6 occurs in the base 10 representation of n but not of n+1.at n=37A044759
- Numbers with digits nondecreasing and their reciprocals sum to 1/(positive integer).at n=23A045910