6254
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
- 8
- Divisor Sum
- 9720
- Proper Divisor Sum (Aliquot Sum)
- 3466
- 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
- 3016
- Möbius Function
- -1
- Radical
- 6254
- 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
- 155
- 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
- Smallest nonnegative number that is the sum of 3 squares in exactly n ways.at n=34A000437
- Smallest number that is the sum of 3 squares in at least n ways.at n=34A000451
- Values of m in the discriminant D = -4*m leading to a new maximum of the L-function of the Dirichlet series L(1) = Sum_{k=1..oo} Kronecker(D,k)/k.at n=20A003420
- a(n) is the smallest number that is the sum of 3 nonzero squares in exactly n ways.at n=34A025414
- Least sum of 3 distinct nonzero squares in exactly n ways.at n=34A025415
- Numbers having four 0's in base 5.at n=27A043352
- Number of rooted trees with n nodes with every leaf at height 10.at n=17A048815
- a(n) = (2*n-1)*(n^2 -n +6)/6.at n=26A049480
- Dimension of the space of weight n cuspidal newforms for Gamma_1( 87 ).at n=30A063360
- a(n) = (9*n^2 + 5*n + 2)/2.at n=37A064225
- a(n) = 2*prime(n)*prime(n+1).at n=15A069486
- Squared radii of the spheres around (0,0,0) that contain record numbers of lattice points.at n=42A071609
- Positions of check bits in code in A075934.at n=35A075936
- Least positive number having exactly n partitions into three squares.at n=34A095809
- a(0)=0; then a(4*k+1)=a(4*k)+(4*k+1)^2, a(4*k+2)=a(4*k+1)+(4*k+3)^2, a(4*k+3)=a(4*k+2)+(4*k+2)^2, a(4*k+4)=a(4*k+3)+(4*k+4)^2.at n=26A115391
- Least integer that can be written as a sum of 3 squares in n nontrivial ways (ignoring order and signs).at n=35A122699
- Smallest positive integer which can be expressed as the ordered sum of 3 squares in exactly n different ways.at n=35A124970
- a(n) = 169n + 1.at n=36A158221
- Partial sums of [A080782^2].at n=25A164765
- Partial sums of A048995.at n=28A174514