1184
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 14
- Digital Root
- 5
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 2
Divisibility
- Divisor Count
- 12
- Divisor Sum
- 2394
- Proper Divisor Sum (Aliquot Sum)
- 1210
- Abundant Number
- yes
- Perfect Number
- no
- Deficient Number
- no
- Highly Composite
- no
- Weird Number
- no
- Untouchable Number
- no
- Primitive Abundant
- yes
Derived Values
- Euler's Totient
- 576
- Möbius Function
- 0
- Radical
- 74
- Omega Function (Ω)
- 6
- 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
- yes
- Harshad Number
- no
- Narcissistic Number
- no
- Collatz Steps
- 26
- Smith Number
- no
- Vampire Number
- no
Primality
- Prime
- no
- Composite Number
- yes
- Semiprime
- no
- Squarefree Number
- no
- 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
- Numbers k such that (k / product of digits of k) is 1 or a prime.at n=20A001103
- Smaller of an amicable pair: (a,b) such that sigma(a) = sigma(b) = a+b, a < b.at n=1A002025
- Numbers that are the sum of 6 positive 5th powers.at n=30A003351
- Primitive pseudoperfect numbers.at n=19A006036
- Primitive nondeficient numbers.at n=17A006039
- a(n) = n^2*(5*n-3)/2.at n=8A006597
- a(0) = a(1) = 0; for n >= 2, a(n)*2^(n+2) + 1 is the smallest prime factor of the n-th Fermat number F(n) = 2^(2^n) + 1.at n=9A007117
- Numbers that are divisible by the product of their digits.at n=41A007602
- Expansion of f(f(x)), where f = x + x^2 + x^4 + x^8 + x^16 + ...at n=17A007801
- Coordination sequence T1 for Zeolite Code AEI.at n=26A008001
- Coordination sequence T3 for Zeolite Code AEI.at n=26A008003
- Coordination sequence T4 for Zeolite Code MEL.at n=22A008153
- Coordination sequence T1 for Zeolite Code NAT.at n=23A008203
- Expansion of log(1+sin(x))/cosh(x).at n=8A009336
- Expansion of e.g.f.: sin(log(1+sin(x))).at n=8A009450
- a(n) = n*nextprime(n).at n=32A013636
- Continued fraction for log(43).at n=28A016471
- Cycle class sequence c(2n) (the number of true cycles of length 2n in which a certain node is included) for zeolite ATS = MAPO-36 H[MgAl11P12O48] starting with a T3 atom.at n=4A018987
- Numbers whose base-6 representation is the juxtaposition of two identical strings.at n=31A020334
- Pisot sequence T(4,6), a(n) = floor(a(n-1)^2/a(n-2)).at n=20A020747