4308
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 15
- Digital Root
- 6
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 1
Divisibility
- Divisor Count
- 12
- Divisor Sum
- 10080
- Proper Divisor Sum (Aliquot Sum)
- 5772
- 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
- 1432
- Möbius Function
- 0
- Radical
- 2154
- 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
- 33
- 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
- The coding-theoretic function A(n,4,4).at n=44A001843
- a(n) = 3 + n/2 + 7*n^2/2.at n=35A006124
- a(n) = floor( n*(n-1)*(n-2)/29 ).at n=51A011911
- a(n) = Sum_{i,j,k in Z and i^2 + j^2 + k^2 <= n} i^2 + j^2 + k^2.at n=19A014203
- a(n) = n*(15*n - 1)/2.at n=24A022272
- Numbers with exactly five distinct base-8 digits.at n=20A031985
- Decimal part of a(n)^(1/n) starts with a pandigital anagram (digits 0 through 9 in some order).at n=23A035304
- Numbers whose base-4 representation contains exactly three 0's and three 1's.at n=33A045031
- T(n,n-1), array T given by A047020.at n=8A047023
- Number of positive integers <= 2^n of form 2 x^2 + 9 y^2.at n=15A054159
- Number of partitions of n such that all parts are neither relatively prime (cf. A000837) nor are they periodic with each part occurring the same number of times (cf. A024994).at n=57A060034
- Numbers k > 1 such that, in base 3, k and k^2 contain the same digits in the same proportion.at n=36A061657
- The array of A063179 read by diagonals in direction of creation.at n=42A063180
- The array of A063179 read by diagonals in the 'up' direction.at n=38A063181
- Sum of the reverses of the first n primes.at n=31A071602
- Diagonal of triangular spiral in A051682.at n=30A081270
- Numbers k such that A083539(k) is a square; solutions x to sigma(x+1)*sigma(x)=y^2 for some y.at n=32A083540
- Gregorian calendar years with Ascension Day in April.at n=15A084427
- Start of the first run of a string of exactly n successive integers in A088070.at n=12A088390
- G.f. A(x) satisfies A(x/A(x)) = 1/(1-x).at n=7A088713