6996
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 30
- Digital Root
- 3
- Palindromic Number
- yes
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 3
Divisibility
- Divisor Count
- 24
- Divisor Sum
- 18144
- Proper Divisor Sum (Aliquot Sum)
- 11148
- Abundant Number
- yes
- Perfect Number
- no
- Deficient Number
- no
- Highly Composite
- no
- Weird Number
- no
- Untouchable Number
- no
- Primitive Abundant
- no
Derived Values
- Euler's Totient
- 2080
- Möbius Function
- 0
- Radical
- 3498
- Omega Function (Ω)
- 5
- Little Omega Function (ω)
- 4
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
- 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
- Number of monosubstituted alkanes C(n-1)H(2n-1)-X with n-1 carbon atoms that are not stereoisomers.at n=19A000621
- Cycle class sequence c(n) (the number of true cycles of length n in which a certain node is included) for zeolite HEU = Heulandite Ca4[Al8Si28O72].24H2O starting with a T1 atom.at n=12A019138
- Numbers k such that k*(k+8) is a palindrome.at n=16A028567
- Base-10 palindromes that start with 6.at n=21A043041
- Palindromic and divisible by 4.at n=39A045639
- Palindromes that are divisible by 6.at n=25A045641
- Largest palindromic substring in 3^n.at n=34A046261
- Largest palindromic substring in 9^n.at n=17A046267
- Palindromes with exactly 5 prime factors (counted with multiplicity).at n=17A046331
- Composite palindromes whose sum of prime factors is prime (counted with multiplicity).at n=29A046365
- Palindromes expressible as sum of 2 consecutive palindromes.at n=51A046497
- Palindromes expressible as the sum of 3 consecutive palindromes.at n=18A046498
- Palindromic untouchable numbers.at n=15A048187
- Numerators of ratios converging to the Thue-Morse constant, converted to hexadecimal.at n=4A048708
- Number of labeled minimally 2-edge-connected graphs by nodes.at n=4A054596
- Number of primitive (period n) periodic palindromic structures using a maximum of four different symbols.at n=16A056515
- Numbers k such that phi(x) = k has exactly 7 solutions.at n=42A060670
- Smallest palindrome with digit sum = n.at n=30A062388
- n sets a new record for the number of integers k such that n = k + reverse(k).at n=25A067035
- Numbers n such that the number of primes not exceeding sigma(n) equals phi(n), i.e., pi(sigma(n)) = phi(n).at n=8A067787