11369
domain: N
Properties
Digital Properties
- Digit Count
- 5
- Digit Sum
- 20
- Digital Root
- 2
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 3
Divisibility
- Divisor Count
- 2
- Divisor Sum
- 11370
- 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
- 11368
- Möbius Function
- -1
- Radical
- 11369
- 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
- 130
- 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
- 1373
- Perfect Power
- no
- Smooth Number
- no
- Carmichael Number
- no
Classification
- Even
- no
- Odd
- yes
Appears in sequences
- Numbers k such that the continued fraction for sqrt(k) has period 95.at n=8A020434
- Smallest prime containing n-th square as substring.at n=37A029948
- Second term of strong prime 5-tuples: p(m)-p(m-1) > p(m+1)-p(m) > p(m+2)-p(m+1) > p(m+3)-p(m+2).at n=28A054809
- Smallest prime containing the n-th square in decimal notation.at n=36A065144
- Smallest prime of the form 1 followed by a perfect power.at n=7A089773
- Balanced primes of order six.at n=13A096698
- Balanced primes of order eight.at n=22A096700
- a(n) = n-th centered n-gonal number.at n=28A100119
- Indices of primes in sequence defined by A(0) = 49, A(n) = 10*A(n-1) - 1 for n > 0.at n=15A101737
- Primes of the form A108656(n-2)*n^2+A108656(n-1)*n+A108656(n).at n=36A108657
- Primes for which the weight as defined in A117078 is 15 and the gap as defined in A001223 is 14.at n=15A118380
- Numbers k such that 2^k, 3^k, 5^k, 7^k, 11^k, 13^k, 17^k and 19^k have even digit sum.at n=34A119897
- Primes for which the period of the reciprocal equals (p-1)/14.at n=11A135073
- Prime numbers, isolated from neighboring primes by more than 12.at n=27A137873
- Primes of the form 210k + 29.at n=30A140845
- Primes congruent to 10 mod 37.at n=36A142119
- Primes congruent to 12 mod 41.at n=34A142209
- Primes congruent to 17 mod 43.at n=34A142266
- Primes congruent to 42 mod 47.at n=26A142393
- Primes congruent to 1 mod 49.at n=33A142414