6305
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 14
- Digital Root
- 5
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 1
Divisibility
- Divisor Count
- 8
- Divisor Sum
- 8232
- Proper Divisor Sum (Aliquot Sum)
- 1927
- 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
- 4608
- Möbius Function
- -1
- Radical
- 6305
- 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
- yes
- Hexagonal Number
- no
- Lucas Number
- no
- Tetrahedral Number
- no
- Pell Number
- no
- Tribonacci Number
- no
- Pronic Number
- no
Recreational
- Happy Number
- yes
- Harshad Number
- no
- Narcissistic Number
- no
- Collatz Steps
- 62
- 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
- a(n) = 3^n - 2^n.at n=8A001047
- Numbers k such that the continued fraction for sqrt(k) has period 9.at n=33A010339
- Odd pentagonal numbers.at n=32A014632
- Expansion of 1/(1-x^7-x^8-x^9-x^10-x^11-x^12-x^13-x^14-x^15-x^16).at n=51A017865
- Pseudoprimes to base 12.at n=29A020140
- Pseudoprimes to base 18.at n=34A020146
- Pseudoprimes to base 27.at n=41A020155
- Pseudoprimes to base 34.at n=43A020162
- Pseudoprimes to base 47.at n=43A020175
- Pseudoprimes to base 51.at n=25A020179
- Pseudoprimes to base 77.at n=28A020205
- Pseudoprimes to base 79.at n=27A020207
- Pseudoprimes to base 96.at n=25A020224
- Expansion of 1/((1-5x)(1-8x)(1-12x)).at n=3A020448
- Nexus numbers (n+1)^8 - n^8.at n=2A022524
- a(n) = 9^n - n^4.at n=4A024105
- n written in fractional base 9/6.at n=32A024654
- Numbers that are the sum of 2 nonzero squares in exactly 4 ways.at n=31A025287
- Numbers that are the sum of 2 nonzero squares in 4 or more ways.at n=32A025295
- Numbers that are the sum of 2 distinct nonzero squares in exactly 4 ways.at n=31A025305