5437
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 19
- Digital Root
- 1
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 2
Divisibility
- Divisor Count
- 2
- Divisor Sum
- 5438
- 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
- 5436
- Möbius Function
- -1
- Radical
- 5437
- 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
- 67
- 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
- 718
- Perfect Power
- no
- Smooth Number
- no
- Carmichael Number
- no
Classification
- Even
- no
- Odd
- yes
Appears in sequences
- Primes p such that the multiplicative order of 2 modulo p is (p-1)/3.at n=48A001133
- Where the prime race among 5k+1, ..., 5k+4 changes leader.at n=26A007353
- Primes of the form 2*k^2 + 29.at n=45A007641
- Coordination sequence T5 for Zeolite Code NES.at n=47A008209
- Numbers k such that the continued fraction for sqrt(k) has period 69.at n=5A020408
- Initial members of prime triples (p, p+4, p+6).at n=42A022005
- Discriminants of quintic fields with 4 complex conjugates.at n=28A023685
- Let a (resp. b,c,d) be number of primes in the range {2..p} that end in 1 (resp. 3,7,9); sequence gives p such that a=d and b=c.at n=37A038562
- Numbers whose base-4 representation contains exactly four 1's and two 3's.at n=33A045131
- Numbers whose base-5 representation contains exactly three 2's and two 3's.at n=19A045276
- Second member of a sexy prime quadruple: value of p+6 such that p, p+6, p+12 and p+18 are all prime.at n=19A046122
- Primes p such that p+4 and p+12 are also prime.at n=38A046137
- Coordination sequence T1 for Zeolite Code AEN.at n=46A047950
- Discriminants of real quadratic fields with class number 1 and related continued fraction period length of 21.at n=10A051962
- Primes at which the difference pattern X42Y (X and Y >= 6) occurs in A001223.at n=15A052164
- Third term of strong prime 5-tuples: p(m-1)-p(m-2) > p(m)-p(m-1) > p(m+1)-p(m) > p(m+2)-p(m+1).at n=15A054810
- Primes p such that p^8 reversed is also prime.at n=33A059701
- Primes p = prime(k) such that prime(k) + prime(k+7) = prime(k+1) + prime(k+6) = prime(k+2) + prime(k+5) = prime(k+3) + prime(k+4).at n=5A064102
- Primes p such that x^3 = 2 has a solution mod p, but x^(3^2) = 2 has no solution mod p.at n=30A070180
- Final members of groups in A076034.at n=45A076033