7394
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 23
- Digital Root
- 5
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 3
Divisibility
- Divisor Count
- 4
- Divisor Sum
- 11094
- Proper Divisor Sum (Aliquot Sum)
- 3700
- 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
- 3696
- Möbius Function
- 1
- Radical
- 7394
- 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
- 39
- 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
- Cycle class sequence c(n) (the number of true cycles of length n in which a certain node is included) for zeolite CON = CIT-1 H2[B2Si54O112] starting with a T7 atom.at n=12A019097
- Self-convolution of row n of array T given by A026120.at n=6A027322
- Expansion of 1/((1-3x)(1-7x)(1-8x)(1-10x)).at n=3A028090
- 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=26A031582
- a(i) is a square mod a(j), i <> j.at n=19A034903
- Numbers whose base-3 representation has exactly 9 runs.at n=7A043589
- Numbers n such that number of runs in the base 3 representation of n is congruent to 1 mod 8.at n=23A043799
- Numbers n such that number of runs in the base 3 representation of n is congruent to 0 mod 9.at n=7A043806
- Numbers k such that number of runs in the base 3 representation of k is congruent to 9 mod 10.at n=7A043824
- Number of right triangles of a given area required to form successively larger squares.at n=42A060626
- n*10^2-1, n*10^2-3, n*10^2-7 and n*10^2-9 are all prime.at n=14A064976
- Base 4 expansion of 1/n has equal percentage of each digit 0,1,2,3.at n=11A074709
- Base 4 expansion of 1/n has equal percentage of each digit 0,1,2,3 (primitive values of n only).at n=10A074900
- a(n) = (1/24) * (A018188(n)-11).at n=39A092153
- Number of partitions of n having no parts equal to the size of their Durfee squares.at n=39A118199
- First terms "a" of quadruples a>b>c>d>0 with six square pairwise sums.at n=13A175534
- A (1, 2) Somos-4 sequence associated to the elliptic curve E: y^2 + x*y - y = x^3 - x.at n=8A178621
- Values of c such that (c+9*b)*Prime(n)#-1 is the least prime such that (c+k*b)*Prime(n)#-1 is prime for k=0 to 9 with c+9*b < Prime(n)# , or 0 if no solution. Prime(n)#=n-th primorial.at n=11A188366
- Number of (n+5)X(n+5) 0..1 matrices with each 6X6 subblock idempotent.at n=3A224569
- Number of (n+5)X9 0..1 matrices with each 6X6 subblock idempotent.at n=3A224573