4326
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
- 3
Divisibility
- Divisor Count
- 16
- Divisor Sum
- 9984
- Proper Divisor Sum (Aliquot Sum)
- 5658
- 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
- 1224
- Möbius Function
- 1
- Radical
- 4326
- Omega Function (Ω)
- 4
- Little Omega Function (ω)
- 4
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
- 139
- 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
- yes
- Odd
- no
Appears in sequences
- Number of monosubstituted alkanes C(n-1)H(2n-1)-X with n-1 carbon atoms that are stereoisomers.at n=11A000620
- a(n) = solution to the postage stamp problem with 3 denominations and n stamps.at n=39A001208
- Denominators of Bernoulli numbers B_{2n}.at n=51A002445
- Coefficients of high-temperature series for specific heat of spin-1/2 Ising model on a cristobalite lattice.at n=6A005392
- Coordination sequence T9 for Zeolite Code EUO.at n=41A008104
- Coordination sequence T7 for Zeolite Code NES.at n=42A008211
- Coordination sequence T5 for Zeolite Code NON.at n=40A008216
- Coordination sequence for NiAs(2), As position.at n=31A009945
- Coordination sequence for NiAs(2), Ni position.at n=31A009946
- Powers of fourth root of 21 rounded down.at n=11A018105
- Powers of fourth root of 21 rounded to nearest integer.at n=11A018106
- a(n) = n*(11*n+1)/2.at n=28A022269
- Duplicate of A022269.at n=27A026817
- Numbers with exactly five distinct base-8 digits.at n=26A031985
- a(n) = (n!/2)*Sum(1/k!, k=1..n-2).at n=7A038158
- Numbers n such that n | 8^n + 7^n + 6^n + 5^n + 4^n + 3^n + 2^n + 1^n.at n=33A056751
- n*M127 - 1 is prime, where M127 = 2^127 - 1.at n=41A057441
- Numbers k such that sigma(k) = phi(prime(k)-1).at n=18A067651
- Trajectory of n under the Reverse and Add! operation carried out in base 4 (presumably) does not reach a palindrome and (presumably) does not join the trajectory of any term m < n.at n=14A075421
- Triangular array related to tennis ball problem, read by rows.at n=39A079521