5878
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 28
- Digital Root
- 1
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 2
Divisibility
- Divisor Count
- 4
- Divisor Sum
- 8820
- Proper Divisor Sum (Aliquot Sum)
- 2942
- 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
- 2938
- Möbius Function
- 1
- Radical
- 5878
- 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
- 80
- 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 ordered 5-tuples of integers from [ 1..n ] with no global factor.at n=12A015650
- Number of 3's in n-th term of A006711.at n=36A022479
- [ exp(2/13)*n! ].at n=6A030932
- 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 76.at n=8A031574
- Number of winning length n strings with a 2-symbol alphabet in "same game".at n=13A035615
- (s(n)+1)/9, where s(n)=n-th base 9 palindrome that starts with 8.at n=25A043079
- Numbers k such that 111*2^k-1 is prime.at n=35A050581
- Third column of triangle A054453.at n=13A054454
- Floor(decimal concatenation of first n natural numbers/their sum).at n=5A067116
- Convolution of Fibonacci F(n+1), n >= 0, with F(n+3), n >= 0.at n=12A067331
- Sum of even-indexed primes.at n=35A077126
- n-th positive integer whose digits sum up to n.at n=27A081927
- Nearest integer to 1/(Sum_{k>=n} 1/k^4).at n=12A083559
- Number of 'prime' ground-state 3-ball juggling sequences of period n.at n=8A084529
- Difference between the arithmetic mean of the neighbors of the terms and the term itself follows the pattern 0,1,2,3,4,5,...at n=27A086514
- Number of subsets of {1, ..., n} that are neither double-free nor sum-free.at n=13A088812
- a(n) = round(10000*log(n/10)).at n=17A104077
- The smallest part summed over all partitions of n in which every integer from the smallest part to the largest part occurs.at n=50A117467
- Number of base 28 circular n-digit numbers with adjacent digits differing by 9 or less.at n=3A125485
- Numbers k such that prime(k) = A123206(n).at n=4A126094