7094
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
- 1
Divisibility
- Divisor Count
- 4
- Divisor Sum
- 10644
- Proper Divisor Sum (Aliquot Sum)
- 3550
- 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
- 3546
- Möbius Function
- 1
- Radical
- 7094
- 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
- 57
- 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
- No-3-in-line problem: number of inequivalent ways of placing 2n points on an n X n grid so that no 3 are in a line.at n=16A000769
- Number of partitions of n into prime power parts (1 excluded).at n=50A023894
- Least sum of 3 distinct nonzero squares in exactly n ways.at n=33A025415
- Number of partitions of n that do not contain 9 as a part.at n=32A027343
- 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 84.at n=3A031582
- Numbers having three 6's in base 8.at n=33A043447
- a(n+1) = a(n)-th composite number, with a(1) = 11.at n=28A059407
- Sum of first n 6-almost primes.at n=19A086052
- a(n) = floor(sqrt(3)*2^(n-1)).at n=12A094386
- a(n) is the smallest positive d such that the n-th prime is the smallest prime p for which p+d is also prime.at n=22A101042
- A101042 sorted. There exists a prime p for which a(n) is the smallest positive d such that p is the smallest prime where p+d is also prime.at n=24A101043
- n times pi(n) is a palindrome, where pi(n) = PrimePi(n) = A000720(n).at n=28A116054
- Number of hyperforests with n unlabeled vertices: analog of A134955 when edges of size 1 are allowed (with no two equal edges).at n=7A134957
- Even composites in A145832.at n=42A145915
- Number of walks within N^3 (the first octant of Z^3) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, -1), (0, 0, 1), (0, 1, 0), (1, 0, 1), (1, 1, 0)}.at n=6A151244
- Number of binary strings of length n with no substrings equal to 0010 1001 or 1100.at n=12A164501
- Number of slanted 2 X n (i=1..2) X (j=i..n+i-1) 1..4 arrays with all 1s connected, all 2s connected, all 3s connected, all 4s connected, 1 in the upper left corner, 2 in the upper right corner, 3 in the lower left corner, 4 in the lower right corner, and with no element having more than 2 neighbors with the same value.at n=41A165392
- Imbalance of the sum of largest parts of all partitions of n.at n=30A194809
- Number of 0..n arrays x(0..8) of 9 elements with zero 4th differences.at n=40A200445
- Difference between sum of largest parts and sum of smallest parts of all partitions of n into an even number of parts.at n=25A211881