3422
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 11
- Digital Root
- 2
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 3
Divisibility
- Divisor Count
- 8
- Divisor Sum
- 5400
- Proper Divisor Sum (Aliquot Sum)
- 1978
- 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
- 1624
- Möbius Function
- -1
- Radical
- 3422
- 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
- yes
Recreational
- Happy Number
- no
- Harshad Number
- no
- Narcissistic Number
- no
- Collatz Steps
- 149
- 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
- yes
- Odd
- no
Appears in sequences
- a(n) = (3*n+1)*(3*n+2).at n=19A001504
- Number of partitions into one kind of 1's, two kinds of 2's, and three kinds of 3's.at n=27A002597
- a(n) = 2*n*(2*n+1).at n=29A002943
- Number of elementary sequences of length n.at n=8A005268
- Coordination sequence T1 for Zeolite Code VFI.at n=45A008245
- a(n) = lcm(n, phi(n)).at n=58A009262
- Number of partitions of 2*n into at most 4 parts.at n=37A014126
- Multiplicity of trivial character in V_n, where V = Sum V_n is the graded module for the Monster simple group.at n=32A014810
- Nearest integer to Gamma(n + 6/7)/Gamma(6/7).at n=7A020029
- a(n) = floor( Gamma(n+6/7)/Gamma(6/7) ).at n=7A020074
- Every prefix prime in base 5 (written in base 5).at n=12A024765
- Every prefix prime in base 9 (written in base 9).at n=32A024769
- Sorted Galois numbers.at n=20A028689
- a(n) = floor(5*n^2/2).at n=37A032526
- Number of partitions of n into parts 5k+1 and 5k+2 with at least one part of each type.at n=52A035631
- Product of a prime and the previous number.at n=16A036689
- Coordination sequence T4 for Zeolite Code STF.at n=39A038439
- Numbers whose base-15 representation has exactly 4 runs.at n=30A043671
- Numbers n such that string 2,2 occurs in the base 10 representation of n but not of n-1.at n=34A044354
- Numbers n such that string 2,2 occurs in the base 10 representation of n but not of n+1.at n=34A044735