7369
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 25
- Digital Root
- 7
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 3
Divisibility
- Divisor Count
- 2
- Divisor Sum
- 7370
- Proper Divisor Sum (Aliquot Sum)
- 1
- 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
- 7368
- Möbius Function
- -1
- Radical
- 7369
- Omega Function (Ω)
- 1
- Little Omega Function (ω)
- 1
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
- 44
- Smith Number
- no
- Vampire Number
- no
Primality
- Prime
- yes
- Composite Number
- no
- Semiprime
- no
- Squarefree Number
- yes
- Prime Power
- yes
- Prime Factorization
- no
- Twin Prime
- no
- Mersenne Prime
- no
- Sophie Germain Prime
- no
- Safe Prime
- no
- Powerful Number
- no
- Achilles Number
- no
- Prime Index
- 938
- Perfect Power
- no
- Smooth Number
- no
- Carmichael Number
- no
Classification
- Even
- no
- Odd
- yes
Appears in sequences
- a(n) = 5*a(n-1) - a(n-2).at n=6A002320
- a(n) = floor(n*(n-1)*(n-2)/15).at n=49A011897
- a(1)=1, a(n) = n*12^(n-1) + a(n-1).at n=3A014927
- Quadruples of different integers from [ 2,n ] with no common factors between pairs.at n=36A015628
- Numbers k such that the period of the continued fraction for sqrt(k) contains exactly 62 ones.at n=4A031830
- Upper prime of a difference of 18 between consecutive primes.at n=28A031937
- Primes whose consecutive digits differ by 3 or 4.at n=25A048415
- a(n) = 1 + 2*n + 3*n^2 + 4*n^3.at n=12A056578
- First member of a prime triple in a p^2 + p - 1 progression.at n=33A057324
- First member of a prime triple in a 2p-1 progression.at n=34A057326
- Primes whose reversal is a multiple of 23.at n=38A087767
- Primes p = prime(n) such that p + sum-of-digits(p) +- 1 = prime(n+1).at n=37A090180
- Primes which are also prime if their base 32 representation is interpreted as a base 10 number.at n=39A090716
- Primes p such that q-p = 24, where q is the next prime after p.at n=10A098974
- a(n) = (1/6)*(n^3 + 21*n^2 + 74*n + 18).at n=29A103145
- Primes with digit sum = 25.at n=33A106763
- prime(k) for those k where floor((2*(prime(k+1)-prime(k))*PrimePi(k) mod (8*k))/k) = m with m = 8.at n=19A109562
- a(1) = 10; a(n) is smallest number >= a(n-1) such that the juxtaposition a(1)a(2)...a(n) is a prime.at n=37A111524
- Number of permutations of length n which avoid the patterns 1432, 2314, 3124.at n=8A116787
- Start with 1 and repeatedly reverse the digits and add 68 to get the next term.at n=48A118215