2934
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 18
- Digital Root
- 9
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 3
Divisibility
- Divisor Count
- 12
- Divisor Sum
- 6396
- Proper Divisor Sum (Aliquot Sum)
- 3462
- Abundant Number
- yes
- Perfect Number
- no
- Deficient Number
- no
- Highly Composite
- no
- Weird Number
- no
- Untouchable Number
- no
- Primitive Abundant
- no
Derived Values
- Euler's Totient
- 972
- Möbius Function
- 0
- Radical
- 978
- Omega Function (Ω)
- 4
- 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
- no
Recreational
- Happy Number
- no
- Harshad Number
- yes
- Narcissistic Number
- no
- Collatz Steps
- 141
- Smith Number
- yes
- 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
- Balancing weights on the integer line.at n=8A002838
- Coordination sequence for Cr3Si, Cr position.at n=14A009928
- A sum over scaled A000531 related to Catalan numbers C(n).at n=4A029887
- Least term in period of continued fraction for sqrt(n) is 6.at n=20A031430
- Number of series-reduced dyslexic planted compound windmills with n leaves of 2 colors with no symmetries.at n=8A032259
- Concatenation of n and n + 5 or {n,n+5}.at n=28A032610
- Every run of digits of n in base 8 has length 2.at n=40A033006
- Number of partitions of n with equal number of parts congruent to each of 0, 3 and 4 (mod 5).at n=42A035577
- Number of partitions of n into parts not of the form 23k, 23k+5 or 23k-5. Also number of partitions with at most 4 parts of size 1 and differences between parts at distance 10 are greater than 1.at n=28A035993
- StirlingS2[ n,m ] triangle summed down the columns.at n=41A036560
- Number of partitions satisfying 0 < cn(1,5) + cn(2,5) + cn(3,5) and 0 < cn(4,5) + cn(2,5) + cn(3,5).at n=27A039901
- Denominators of continued fraction convergents to sqrt(328).at n=3A041619
- Numbers n such that string 3,4 occurs in the base 10 representation of n but not of n-1.at n=32A044366
- Numbers n such that string 3,4 occurs in the base 10 representation of n but not of n+1.at n=32A044747
- Triangle related to A001700 and A000302 (powers of 4).at n=23A046658
- Triangle of numbers a(n,k) = number of balance positions when k equal weights are placed at a k-subset of the points {-n, -(n-1), ..., n-1, n} on a centrally pivoted rod.at n=44A047997
- Second convolution of A001405 (central binomial numbers).at n=9A054442
- McKay-Thompson series of class 35B for Monster.at n=32A058641
- a(n) = 2*n*(2*n^2 + 1).at n=9A061804
- Positive numbers whose product of digits is 12 times their sum.at n=20A062045