3862
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
- 5796
- Proper Divisor Sum (Aliquot Sum)
- 1934
- 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
- 1930
- Möbius Function
- 1
- Radical
- 3862
- 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
- 144
- 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
- Coordination sequence T3 for Zeolite Code DAC.at n=39A008069
- Cycle class sequence c(n) (the number of true cycles of length n in which a certain node is included) for zeolite MTW = ZSM-12 Nan[AlnSi28-nO56] starting with a T7 atom.at n=11A019193
- Numbers k such that the continued fraction for sqrt(k) has period 78.at n=3A020417
- 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 62.at n=3A031560
- Numbers k such that the period of the continued fraction for sqrt(k) contains exactly 36 ones.at n=9A031804
- Numbers k such that 159*2^k + 1 is prime.at n=24A032456
- Coordination sequence T3 for Zeolite Code CFI.at n=41A033601
- Number of partitions of n into parts not of form 4k+2, 16k, 16k+3 or 16k-3.at n=48A036021
- Number of partitions satisfying cn(0,5) = cn(1,5) + cn(4,5).at n=43A039858
- Numbers n such that 257*2^n-1 is prime.at n=20A050887
- Let R(i,j) be the rectangle with antidiagonals 1; 2,3; 4,5,6; ...; each k is an R(i(k),j(k)) and A057044(n)=j(L(n)), where L(n) is the n-th Lucas number.at n=35A057044
- Coordination sequence T3 for Zeolite Code MTF.at n=37A057306
- Dimension of the space of weight n cuspidal newforms for Gamma_1( 55 ).at n=36A063328
- a(n) = (11*n^2 - 11*n + 2)/2.at n=26A069125
- Rounded volume of a regular tetrahedron with edge length n.at n=32A071399
- Numbers k such that for any positive integers (a, b), if a * b = k then a + b is prime.at n=50A080715
- Diagonal sums of A103462.at n=13A103481
- Semiprimes with prime sum of decimal digits and prime sum of prime factors.at n=35A108610
- Number of Type I but not Type II additive Hermitian self-dual codes of length n over GF(4).at n=9A110865
- Least k such that k*p(n)#/5-3+j is prime for j=2,4,8.at n=21A111122