6146
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
- 3
Divisibility
- Divisor Count
- 8
- Divisor Sum
- 10560
- Proper Divisor Sum (Aliquot Sum)
- 4414
- 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
- 2628
- Möbius Function
- -1
- Radical
- 6146
- 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
- 111
- 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
- Numbers that are the sum of 8 positive 10th powers.at n=6A004808
- Numbers that are the sum of 5 positive 11th powers.at n=3A004816
- Numbers that are the sum of at most 5 positive 11th powers.at n=17A004911
- Numbers that are the sum of at most 6 positive 11th powers.at n=20A004912
- Numbers that are the sum of at most 7 positive 11th powers.at n=23A004913
- Numbers that are the sum of at most 8 positive 11th powers.at n=26A004914
- Numbers that are the sum of at most 9 positive 11th powers.at n=29A004915
- Numbers that are the sum of at most 10 positive 11th powers.at n=32A004916
- Numbers that are the sum of at most 11 positive 11th powers.at n=35A004917
- Numbers that are the sum of at most 12 positive 11th powers.at n=38A004918
- a(n) = 6*n^2 + 2 for n > 0, a(0)=1.at n=32A005897
- Expansion of e.g.f. sinh(log(1+x)*cosh(x)).at n=7A009580
- a(0) = 1, a(n) = 24*n^2 + 2 for n>0.at n=16A010014
- [ Sum{(sqrt(j+1)-sqrt(i+1))^3} ], 1 <= i < j <= n.at n=34A025223
- Exactly half of first a(n) terms of A022300 are 1's (not known to be infinite).at n=29A025513
- Numbers k such that 45*2^k+1 is prime.at n=16A032372
- Numbers k such that 87*2^k+1 is prime.at n=20A032393
- Numbers ending with '6' that are the difference of two positive cubes.at n=26A038861
- Numbers whose base-4 representation contains exactly four 0's and two 2's.at n=15A045059
- Numbers n such that 141*2^n-1 is prime.at n=15A050596