6283
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 19
- Digital Root
- 1
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 4
Divisibility
- Divisor Count
- 4
- Divisor Sum
- 6448
- Proper Divisor Sum (Aliquot Sum)
- 165
- 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
- 6120
- Möbius Function
- 1
- Radical
- 6283
- 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
- 155
- 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
- Numbers that are the sum of 4 positive 6th powers.at n=24A003360
- Pseudoprimes to base 47.at n=42A020175
- Sequence (a(n): n >= 1) that shifts left 2 places under the "CHK" (necklace, identity, unlabeled) transform and has initial terms a(1) = a(2) = 1.at n=15A032173
- OR-convolution of squares A000290 with themselves.at n=20A033459
- Number of partitions of n into parts not of form 4k+2, 12k, 12k+5 or 12k-5.at n=54A036019
- Denominators of continued fraction convergents to sqrt(91).at n=10A041163
- Denominators of continued fraction convergents to sqrt(364).at n=8A041689
- Denominators of continued fraction convergents to sqrt(819).at n=12A042581
- An approximation to sigma_{5/2}(n): floor( sum_{d|n} d^(5/2) ).at n=29A058272
- An approximation to sigma_{5/2}(n): round( sum_{d|n} d^(5/2) ).at n=29A058273
- Least positive integers, all distinct, that satisfy sum(n>0,1/a(n)^z)=0, where z=(60+I*11)/61.at n=34A084804
- Frequency of the hexadecimal 3 in the first 10^n hexadecimal digits of Pi.at n=4A099336
- Products of two primes that are not Chen primes.at n=13A115719
- Number of walks within N^3 (the first octant of Z^3) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, 1), (-1, 1, 1), (0, 0, 1), (1, 0, 0), (1, 1, -1)}.at n=7A150215
- Numerator of floor(Pi*10^n)/10^n.at n=4A195603
- Numbers of the form 3^j + 8^k, for j and k >= 0.at n=39A226821
- Floor(compositorial(n) / n!), that is, floor(A036691(n) / A000142(n)).at n=10A233447
- Number of partitions p of n such that if h = min(p), then h is an (h,2)-separator of p; see Comments.at n=47A239729
- a(n) = position of the first occurrence of n in A245714.at n=25A245723
- Numbers n for which 3*n is an isolated deficient number.at n=29A273125