2379
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 21
- Digital Root
- 3
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 5
Divisibility
- Divisor Count
- 8
- Divisor Sum
- 3472
- Proper Divisor Sum (Aliquot Sum)
- 1093
- 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
- 1440
- Möbius Function
- -1
- Radical
- 2379
- 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
- 76
- 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
- Number of sublattices of index n in generic 3-dimensional lattice.at n=38A001001
- Prime numbers of measurement.at n=45A002049
- Numbers that are the sum of 6 positive 6th powers.at n=21A003362
- Mian-Chowla sequence (a B_2 sequence): a(1) = 1; for n>1, a(n) = smallest number > a(n-1) such that the pairwise sums of elements are all distinct.at n=37A005282
- Coordination sequence T4 for Zeolite Code AFO.at n=32A008018
- Coordination sequence T6 for Zeolite Code MTW.at n=32A008201
- Coordination sequence T3 for Zeolite Code iRON.at n=34A009883
- Coordination sequence T3 for Zeolite Code RTH.at n=34A009895
- Coordination sequence T6 for Zeolite Code VNI.at n=30A009912
- Numbers k that divide s(k), where s(1)=1, s(j)=13*s(j-1)+j.at n=18A014861
- Numbers n such that phi(n) * sigma(n) + 16 is a perfect square.at n=42A015729
- a(n) = n*(7*n + 1)/2.at n=26A022265
- a(n) = n^3 + n^2 + n.at n=13A027444
- Lucky numbers with size of gaps equal to 14 (upper terms).at n=12A031897
- Lucky numbers with size of gaps equal to 16 (lower terms).at n=6A031898
- "BGK" (reversible, element, unlabeled) transform of 1,1,1,1,...at n=23A032058
- Numbers whose set of base-9 digits is {2,3}.at n=25A032809
- Sums of distinct powers of 13.at n=14A033049
- a(n) = (2*n - 1)*(3*n + 1).at n=20A033569
- Divisors = 3 (mod 4) of Descartes's 198585576189.at n=33A033871