11471
domain: N
Properties
Digital Properties
- Digit Count
- 5
- Digit Sum
- 14
- Digital Root
- 5
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 3
Divisibility
- Divisor Count
- 2
- Divisor Sum
- 11472
- Proper Divisor Sum (Aliquot Sum)
- 1
- Abundant Number
- no
- Perfect Number
- no
- Deficient Number
- yes
- Weird Number
- no
- Untouchable Number
- no
- Primitive Abundant
- no
Derived Values
- Euler's Totient
- 11470
- Möbius Function
- -1
- Radical
- 11471
- 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
- yes
- Harshad Number
- no
- Narcissistic Number
- no
- Collatz Steps
- 174
- 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
- yes
- Safe Prime
- no
- Powerful Number
- no
- Achilles Number
- no
- Prime Index
- 1383
- Perfect Power
- no
- Smooth Number
- no
- Carmichael Number
- no
Classification
- Even
- no
- Odd
- yes
Appears in sequences
- tan(sec(x)*arctanh(x))=x+7/3!*x^3+185/5!*x^5+11471/7!*x^7...at n=3A012843
- Numbers whose base-4 representation contains exactly two 0's and four 3's.at n=31A045075
- Primes p such that x^31 = 2 has no solution mod p.at n=38A059225
- Initial primes of Cunningham chains of first type with length exactly 3. Primes in A059453 that survive as primes just two "2p+1 iterations", forming chains of exactly 3 terms.at n=26A059762
- Rounded volume of a regular tetrahedron with edge length n.at n=46A071399
- Primes having only {1, 4, 7} as digits.at n=28A079651
- Primes of the form 47*k + 3.at n=32A100494
- Primes of the form 4*k-1 such that 8*k-1 and 16*k-1 are also primes.at n=22A101791
- Record values in A062039.at n=49A123643
- Row sums of triangle A131819.at n=31A131820
- Primes among variant of permutational numbers A134750.at n=35A134766
- Primes congruent to 1 mod 31.at n=41A142005
- Primes congruent to 32 mod 41.at n=34A142229
- Primes congruent to 33 mod 43.at n=35A142282
- Primes congruent to 5 mod 49.at n=37A142418
- Primes congruent to 23 mod 53.at n=24A142553
- Primes congruent to 31 mod 55.at n=36A142623
- Primes congruent to 14 mod 57.at n=35A142674
- Primes congruent to 25 mod 59.at n=25A142752
- Primes congruent to 3 mod 61.at n=21A142801