3494
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 20
- Digital Root
- 2
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 3
Divisibility
- Divisor Count
- 4
- Divisor Sum
- 5244
- Proper Divisor Sum (Aliquot Sum)
- 1750
- 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
- 1746
- Möbius Function
- 1
- Radical
- 3494
- 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
- 149
- 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
- 7th-order maximal independent sets in cycle graph.at n=53A007389
- Coordination sequence T1 for Zeolite Code ERI and OFF.at n=43A008093
- Coordination sequence T3 for Zeolite Code LTN.at n=41A008142
- Super-3 Numbers (3n^3 contains substring '333' in its decimal expansion).at n=30A014569
- Expansion of 1/(1-x^10-x^11-x^12-x^13-x^14-x^15).at n=72A017891
- Expansion of 1/(1 - x^10 - x^11 - x^12 - x^13 - x^14 - x^15 - x^16).at n=70A017892
- Numbers k such that the continued fraction for sqrt(k) has period 58.at n=13A020397
- Numbers n such that n divides the (right) concatenation of all numbers <= n written in base 12 (most significant digit on right).at n=12A029505
- 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 58.at n=10A031556
- Coordination sequence T1 for Zeolite Code CFI.at n=39A033599
- Shifts left under transform T where Ta is (identity) DCONV a.at n=29A038046
- Numerators of continued fraction convergents to sqrt(597).at n=6A042144
- Denominators of continued fraction convergents to sqrt(787).at n=7A042517
- Numbers having three 6's in base 8.at n=16A043447
- Numbers n such that string 9,4 occurs in the base 10 representation of n but not of n-1.at n=37A044426
- Numbers k such that string 9,4 occurs in the base 10 representation of k but not of k+1.at n=37A044807
- Numbers n such that the numerator of the rational number 1 + 1/2 + 1/3 + ... + 1/n is a prime number.at n=50A056903
- a(n) is smallest positive integer, distinct from any terms earlier in the sequence, such that (sum{k=1 to n}[a(k)]) divides (product{k=1 to n}[a(k)])*(sum{k=1 to n}[1/a(k)]).at n=14A058330
- Numbers k such that (k!)^2 + prime(k) is prime.at n=10A064769
- Integers for which the periodic part of the continued fraction for the square root of n begins with 9.at n=36A065012