5899
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 31
- Digital Root
- 4
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 2
Divisibility
- Divisor Count
- 4
- Divisor Sum
- 6264
- Proper Divisor Sum (Aliquot Sum)
- 365
- 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
- 5536
- Möbius Function
- 1
- Radical
- 5899
- 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
- 49
- 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 k such that the continued fraction for sqrt(k) has period 66.at n=22A020405
- Pisot sequence P(4,10).at n=8A021004
- 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 75.at n=28A031573
- Conjecturally, largest attractor in '3x+(2n+1)' problem.at n=42A039515
- Discriminants of imaginary quadratic fields with class number 18 (negated).at n=39A046015
- Pisot sequence L(6,7).at n=20A048585
- Pisot sequence L(7,9).at n=19A048589
- Numbers n such that n^2 contains exactly 8 different digits.at n=30A054036
- Semiprimes p1*p2 such that p2>p1 and p2 mod p1 = 7.at n=28A064905
- Smallest composite number with digit sum n.at n=30A067524
- a(n) is the smallest composite number with the sum of digits = the n-th prime number.at n=10A073868
- Number of regions that the line segments in A091908(n) cut the equilateral triangle into.at n=44A092098
- a(n) = 1 + 2 * least i such that A103509(i)=n+1, 0 if no such i exists.at n=43A103510
- a(0) = 0, a(1) = a(2) = 1, a(3) = 2, a(4) = 4, for n>3: a(n+1) = SORT[ a(n) + a(n-1) + a(n-2) + a(n-3) + a(n-4)], where SORT places digits in ascending order and deletes 0's.at n=35A108565
- Start with 1015 and repeatedly reverse the digits and add 4 to get the next term.at n=42A117807
- Indices of records in A078571.at n=9A131559
- Numbers where records occur in A133500.at n=58A133505
- Sum of squared terms in rows of the Padovan-Fibonacci triangle A152545.at n=13A152546
- a(1)=0, a(n+1) is the smallest nonprime with sum of digits > sum of digits of a(n).at n=27A156673
- Numerator of the 2n-th raw moment for distribution of distances between two points picked at random in the interior of a unit cube.at n=5A160693