1094
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
- 1
Divisibility
- Divisor Count
- 4
- Divisor Sum
- 1644
- Proper Divisor Sum (Aliquot Sum)
- 550
- 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
- 546
- Möbius Function
- 1
- Radical
- 1094
- 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
- 31
- 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(n) is the solution to the postage stamp problem with 4 denominations and n stamps.at n=13A001209
- Numbers that are the sum of 9 positive 5th powers.at n=40A003354
- Number of numbers of complexity n, i.e., that can be built from n ones using + and *, and require at least that many ones.at n=24A005421
- Numbers k such that k^64 + 1 is prime.at n=10A006316
- a(n) = (3^n + 1)/2.at n=7A007051
- Coordination sequence T1 for Zeolite Code AEI.at n=25A008001
- Number of orbits on points that are at n steps from 0 in D_10 lattice.at n=12A008375
- x -> x/2 if x even, x -> 3x - 1 if x odd.at n=17A008899
- If a, b in sequence, so is a*b+2.at n=42A009299
- If a, b in sequence, so is ab+10.at n=11A009368
- Number of unlabeled nonseparable (or 2-connected) graphs (or blocks) with n edges.at n=11A010355
- Number of ferrites M_8Y_n that repeat after 6n+40 layers.at n=11A011963
- Numbers k such that the continued fraction for sqrt(k) has period 30.at n=7A020369
- Convolution of odd numbers and primes.at n=10A023662
- Numbers with exactly 6 1's in their ternary expansion.at n=7A023697
- Numbers with exactly 3 3's in their base-5 expansion.at n=28A023736
- Plaindromes: numbers whose digits in base 3 are in nondecreasing order.at n=29A023745
- a(n) = [ (2nd elementary symmetric function of S(n))/(first elementary symmetric function of S(n)) ], where S(n) = {first n+1 positive integers congruent to 1 mod 4}.at n=32A024385
- a(n) = position of n^2 + (n+1)^2 in A004431 (sums of 2 distinct nonzero squares).at n=43A024513
- a(n) = s(1)s(n) + s(2)s(n-1) + ... + s(k)s(n-k+1), where k = [ n/2 ], s = (1, p(1), p(2), ...).at n=13A025099