5379
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 24
- Digital Root
- 6
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 3
Divisibility
- Divisor Count
- 8
- Divisor Sum
- 7872
- Proper Divisor Sum (Aliquot Sum)
- 2493
- 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
- 3240
- Möbius Function
- -1
- Radical
- 5379
- 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
- no
Recreational
- Happy Number
- no
- Harshad Number
- no
- Narcissistic Number
- no
- Collatz Steps
- 72
- 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
- no
- Odd
- yes
Appears in sequences
- S(n,1) + S(n-1,2) + S(n-2,3) + ... + S(n+1-k,k), where k = floor((n+1)/2) and S(i,j) are Stirling numbers of the second kind.at n=10A024427
- a(n) = s(1)t(n) + s(2)t(n-1) + ... + s(k)t(n-k+1), where k = [ n/2 ], s = (composite numbers), t = (odd natural numbers).at n=23A025104
- (d(n)-r(n))/5, where d = A026046 and r is the periodic sequence with fundamental period (1,0,4,0,0).at n=39A026048
- Odd elements in the 5-Pascal triangle A028313.at n=71A028315
- Odd elements in the 5-Pascal triangle A028313.at n=72A028315
- Odd elements in the 5-Pascal triangle A028313 that are not 1.at n=44A028316
- Odd elements in the 5-Pascal triangle A028313 that are not 1.at n=43A028316
- Distinct elements in the 5-Pascal triangle A028313.at n=47A028318
- Distinct odd elements in the 5-Pascal triangle A028313.at n=25A028319
- Elements to the right of the central elements of the 5-Pascal triangle A028313.at n=49A028323
- Elements to the right of the central elements of the 5-Pascal triangle A028313 that are not 1.at n=36A028324
- Odd elements to the right of the central elements of the 5-Pascal triangle A028313.at n=32A028325
- Number of partitions of n such that cn(0,5) = cn(2,5) <= cn(1,5) <= cn(3,5) = cn(4,5).at n=64A036848
- Numbers k such that 10*13^k + 1 is prime.at n=14A057464
- a(n+1) = a(n)-th composite number, with a(1) = 11.at n=26A059407
- Numbers k such that (10^k-1)/9 + 4*10^floor(k/2) is a palindromic wing prime (a.k.a. near-repdigit palindromic prime).at n=7A077783
- Smallest number which requires n iterations to reach a prime when iterating x + sum of squares of digits of x.at n=38A094658
- Moebius transform of binomial(n+3, 4).at n=17A117109
- Inverse permutation to sequence A083872.at n=50A119628
- Number of isomorphism classes of linking pairings on finite Abelian 2-groups of fixed order 2^n.at n=17A122555