1210
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 4
- Digital Root
- 4
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 1
Divisibility
- Divisor Count
- 12
- Divisor Sum
- 2394
- Proper Divisor Sum (Aliquot Sum)
- 1184
- 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
- 440
- Möbius Function
- 0
- Radical
- 110
- 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
- no
- Narcissistic Number
- no
- Collatz Steps
- 18
- 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
- Number of ways of writing n as a sum of 5 squares.at n=25A000132
- Number of compositions of n into 4 ordered relatively prime parts.at n=18A000742
- Number of sublattices of index n in generic 3-dimensional lattice.at n=26A001001
- Squares written in base 4.at n=10A001739
- Larger of amicable pair.at n=1A002046
- 4-dimensional pyramidal numbers: a(n) = n^2*(n^2-1)/12.at n=11A002415
- Squares written in base 9.at n=29A002442
- Convolution of A002024 with itself.at n=38A004797
- a(n) = C(n+2,3) + C(n,3) + C(n-1,3).at n=13A006004
- Gaussian binomial coefficient [n, 2] for q = 3.at n=3A006100
- Gaussian binomial coefficient [ n,3 ] for q=3.at n=2A006101
- Gaussian binomial coefficient [ n,n/2 ] for q=3.at n=5A006104
- Number of binary vectors of length n+1 beginning with 0 and containing just 1 singleton.at n=14A006367
- Expansion of (1+x^2) / ( (1-x)^2 * (1-x^3)^2 ).at n=29A006501
- Numbers in base 3.at n=48A007089
- 9-gonal (or enneagonal) pyramidal numbers: a(n) = n*(n+1)*(7*n-4)/6.at n=10A007584
- Integers written in factorial base.at n=38A007623
- Integer part of Sum_{i=1..n} binomial(n,i) * (n/i)^i.at n=6A007806
- Coordination sequence T4 for Zeolite Code AET.at n=24A008010
- a(n) = floor(n/4)*floor((n+1)/4)*floor((n+2)/4).at n=43A008218