5293
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
- 2
Divisibility
- Divisor Count
- 4
- Divisor Sum
- 5440
- Proper Divisor Sum (Aliquot Sum)
- 147
- 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
- 5148
- Möbius Function
- 1
- Radical
- 5293
- 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
- 54
- 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
- Coordination sequence T1 for Zeolite Code -CHI.at n=46A009846
- Numbers k such that the continued fraction for sqrt(k) has period 80.at n=14A020419
- Numbers k such that the period of the continued fraction for sqrt(k) contains exactly 36 ones.at n=17A031804
- Write 1,2,... in a clockwise spiral; sequence gives numbers on positive x axis.at n=36A033951
- Numbers whose base-2 representation has exactly 11 runs.at n=27A043578
- a(n) = (1/2)*(n-th number whose base-2 representation has exactly 12 runs).at n=30A043686
- Numbers n such that number of runs in the base 2 representation of n is congruent to 1 mod 10.at n=39A043764
- Palindromes in factorial base.at n=43A046807
- Discriminants of real quadratic fields with class number 1 and related continued fraction period length of 24.at n=26A051965
- Third spoke of a hexagonal spiral.at n=42A056107
- Numbers x such that sigma(x)-x divides x-1, other than prime powers.at n=4A059047
- Centered 14-gonal numbers.at n=27A069127
- Sums of members of groups in A076062.at n=21A076060
- Least number that ends an arithmetic progression of n numbers with the same prime signature.at n=11A087309
- a(n) = prime(n)*prime(n+3).at n=18A090090
- Least number that ends an arithmetic progression of n numbers with the same number of divisors.at n=11A090548
- Number of interior intersection points made by the straight line segments connecting the edges of an equilateral triangle with the n-1 points resulting from a subdivision of the sides into n equal pieces, counting coinciding intersection points only once.at n=43A091908
- A bisection of A000960.at n=40A099062
- After the first two terms, each subsequent term is the smallest integer that is an outlier of the previous dataset, based on the criterion of 3 sample standard deviations above the mean.at n=34A103231
- a(n) is the least number of prime factors in any non-deficient number that has the n-th prime as its least prime factor.at n=47A107705