4058
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
- 1
Divisibility
- Divisor Count
- 4
- Divisor Sum
- 6090
- Proper Divisor Sum (Aliquot Sum)
- 2032
- 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
- 2028
- Möbius Function
- 1
- Radical
- 4058
- 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
- 38
- 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
- yes
- Odd
- no
Appears in sequences
- A nonlinear binomial sum.at n=14A000128
- Conjecturally largest even integer which is an unordered sum of two primes in exactly n ways.at n=44A000954
- a(n) = floor(n*phi^10), where phi is the golden ratio, A001622.at n=33A004925
- Representation degeneracies for Ramond strings.at n=15A005304
- a(n) = 6*n^2 + 2 for n > 0, a(0)=1.at n=26A005897
- Numbers k such that k^64 + 1 is prime.at n=42A006316
- a(0) = 1, a(n) = 24*n^2 + 2 for n>0.at n=13A010014
- Number of ordered 5-tuples of integers from [ 2,n ] with no global factor.at n=11A015651
- Magic numbers: atoms with full shells containing any of these numbers of electrons are considered electronically stable.at n=26A018227
- Numbers k such that the continued fraction for sqrt(k) has period 13.at n=27A020352
- a(n) = Sum_{k=0..floor(n/2)} T(n-k,k), T given by A026736.at n=17A026746
- Numbers ending with '8' that are the difference of two positive cubes.at n=17A038863
- Denominators of continued fraction convergents to sqrt(381).at n=8A041723
- Denominators of continued fraction convergents to sqrt(394).at n=10A041749
- Numerators of continued fraction convergents to sqrt(461).at n=4A041878
- Numbers whose base-7 representation contains exactly three 5's.at n=28A043415
- Length of hypotenuse squared in right triangle formed by a prime spiral plotted in Cartesian coordinates.at n=14A048851
- Discriminants of real quadratic fields with class number 2 and related continued fraction period length of 13.at n=11A051978
- Conjecturally largest even integer which is the sum of two primes in at most n ways.at n=44A056636
- Coordination sequence T2 for Zeolite Code MTF.at n=38A057305