4319
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 17
- Digital Root
- 8
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 2
Divisibility
- Divisor Count
- 4
- Divisor Sum
- 4944
- Proper Divisor Sum (Aliquot Sum)
- 625
- 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
- 3696
- Möbius Function
- 1
- Radical
- 4319
- 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
- 126
- 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
- no
- Odd
- yes
Appears in sequences
- Number of partitions of n into at most 5 parts.at n=52A001401
- Coordination sequence T7 for Zeolite Code MTW.at n=43A008202
- Coordination sequence T1 for Zeolite Code NAT.at n=44A008203
- Coordination sequence T8 for Zeolite Code PAU.at n=48A008226
- Coordination sequence T4 for Zeolite Code RSN.at n=43A009888
- 4th Bernoulli polynomial evaluated at powers of 2 (multiplied by 30).at n=2A020529
- Numbers k such that Fib(k) == -13 (mod k).at n=17A023167
- Numbers with exactly 6 2's in their ternary expansion.at n=20A023704
- 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 65.at n=9A031563
- Numbers k such that 147*2^k+1 is prime.at n=26A032423
- a(1) = 2; a(n) is smallest number >= a(n-1) such that the juxtaposition a(1)a(2)...a(n) is a prime.at n=36A033679
- Denominators of continued fraction convergents to sqrt(7).at n=13A041009
- a(n) = smallest number > a(n-1) such that a(1)*a(2)*...*a(n) + 1 and a(1)*a(2)*...*a(n) - 1 are primes.at n=22A051956
- Least inverse of A056796.at n=18A056817
- The least number k = a(n) > a(n-1) for which k!/(k+1)^m for increasing m's.at n=36A061769
- Numbers n such that [A070080(n), A070081(n), A070082(n)] is an integer triangle with integer area, having relatively prime side lengths.at n=34A070143
- Numbers n such that [A070080(n), A070081(n), A070082(n)] is a scalene integer triangle with integer area.at n=37A070144
- Numbers n such that [A070080(n), A070081(n), A070082(n)] is an acute integer triangle with integer area.at n=13A070146
- Numbers n such that [A070080(n), A070081(n), A070082(n)] is an integer triangle with integer inradius.at n=32A070209
- Sum of primes between successive pairs of twin primes.at n=46A078731