7082
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 17
- Digital Root
- 8
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 1
Divisibility
- Divisor Count
- 4
- Divisor Sum
- 10626
- Proper Divisor Sum (Aliquot Sum)
- 3544
- 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
- 3540
- Möbius Function
- 1
- Radical
- 7082
- 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
- 119
- 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
- Sets with a congruence property.at n=15A002703
- Sum of 12 nonzero 8th powers.at n=15A003390
- Numbers k such that the continued fraction for sqrt(k) has period 15.at n=32A020354
- Discriminants of real quadratic fields with class number 2 and related continued fraction period length of 15.at n=13A051980
- Numbers k such that 2^k - prime(k) is prime.at n=13A078583
- Lesser of a,b where n^2 = a^3 + b^3; a,b > 0 and gcd(a,b)=1. The greater of a,b is the corresponding term in A099533 and n, which is used to order this sequence, is the corresponding term in A099426.at n=36A099532
- Semiprimes of the form 2*(m^2 + m + 1) (implying that m^2 + m + 1 is a prime).at n=20A107317
- Number of nonisomorphic orthogonal arrays OA(8*n+4,4,2,2).at n=22A130145
- Numbers k such that either 2^k + prime(k) or 2^k - prime(k) is prime.at n=36A130640
- Number of partitions of n into as many primes as nonprimes.at n=46A155515
- Number of five-prime Carmichael numbers less than 10^n.at n=13A174613
- Smallest even k such that lpf(k-1) = prime(n), while lpf(k-3) > prime(n), where lpf=least prime factor (A020639).at n=19A242489
- Smallest even k such that lpf(k-3) > lpf(k-1) >= prime(n), where lpf=least prime factor (A020639).at n=19A242719
- Total number of points on a sphere when both poles are on an x by x grid where x=8*n+1.at n=29A254527
- Numbers n not divisible by 3 such that n^2 written in base 3 has no digit > 1.at n=35A257283
- The number of distinct triple points in the set of function values FLSN(m/6/7^n), m in 0, 1, 2... 6*7^n, where FLSN:[0,1] is the "flowsnake" plane filling curve.at n=4A261120
- Pisano period of sequence A006054 modulo n.at n=58A284786
- Expansion of Product_{k>=2} (1 + x^k)/(1 - x^k).at n=27A300415
- Least integer N > 2 such that the number of primes (<=N) <= the number of base-n-zero containing numbers (<=N).at n=17A306521
- a(n) = greatest integer N such that (number of primes <= N) >= (number of numbers <= N that contain a zero in base n).at n=17A306526