3170
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 11
- Digital Root
- 2
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 1
Divisibility
- Divisor Count
- 8
- Divisor Sum
- 5724
- Proper Divisor Sum (Aliquot Sum)
- 2554
- 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
- 1264
- Möbius Function
- -1
- Radical
- 3170
- Omega Function (Ω)
- 3
- Little Omega Function (ω)
- 3
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
- 79
- Smith Number
- no
- Vampire Number
- no
Primality
- Prime
- no
- Composite Number
- yes
- Semiprime
- no
- 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) = round(1000*log_2(n)).at n=8A004266
- a(n) = ceiling(1000*log_2(n)).at n=8A004267
- Coordination sequence T2 for Zeolite Code ERI.at n=41A008094
- Coordination sequence T2 for Zeolite Code TON.at n=35A008242
- Coordination sequence T1 for Moganite.at n=36A008258
- Coordination sequence T2 for Moganite, also for BGB1.at n=36A008259
- Coordination sequence T3 for Zeolite Code RTH.at n=39A009895
- a(0) = 1, a(n) = 22*n^2 + 2 for n>0.at n=12A010012
- Integers that are squarefree and also the sum of first k squarefrees for some k.at n=37A013932
- Coordination sequence T2 for Zeolite Code SAO.at n=44A019572
- Coordination sequence T4 for Zeolite Code SAO.at n=44A019574
- Numbers k such that the continued fraction for sqrt(k) has odd period and if the last term of the periodic part is deleted then there are a pair of central terms both equal to 3.at n=42A031416
- Positive numbers having the same set of digits in base 7 and base 8.at n=32A037438
- Coordination sequence T2 for Zeolite Code AFN.at n=40A038402
- Coordination sequence T4 for Zeolite Code AFN.at n=40A038404
- a(n)=(s(n)+2)/8, where s(n)=n-th base 8 palindrome that starts with 6 (in base 8), written in decimal digits.at n=30A043070
- Numbers n such that string 1,7 occurs in the base 10 representation of n but not of n-1.at n=35A044349
- Numbers n such that string 7,0 occurs in the base 10 representation of n but not of n-1.at n=34A044402
- Numbers n such that string 7,0 occurs in the base 10 representation of n but not of n+1.at n=34A044783
- Numbers whose base-5 representation contains exactly three 0's and two 1's.at n=15A045171