11411
domain: N
Properties
Digital Properties
- Digit Count
- 5
- Digit Sum
- 8
- Digital Root
- 8
- Palindromic Number
- yes
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 1
Divisibility
- Divisor Count
- 2
- Divisor Sum
- 11412
- 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
- 11410
- Möbius Function
- -1
- Radical
- 11411
- 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
- 81
- 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
- 1377
- Perfect Power
- no
- Smooth Number
- no
- Carmichael Number
- no
Classification
- Even
- no
- Odd
- yes
Appears in sequences
- Palindromic primes: prime numbers whose decimal expansion is a palindrome.at n=24A002385
- Prime(n)*...*a(n) is the least product of consecutive primes which is non-deficient.at n=25A007686
- Prime(n)*...*a(n) is the least product of consecutive primes which is abundant.at n=25A007708
- Primes that contain digits 1 and 4 only.at n=4A020452
- T(n,0) + T(n,1) + ... + T(n,n), T given by A027907.at n=9A027914
- Numbers k such that the period of the continued fraction for sqrt(k) contains exactly 64 ones.at n=20A031832
- Greater of two consecutive palindromes, both of which are prime.at n=6A032594
- Numbers whose set of base-10 digits is {1,4}.at n=34A032822
- a(n) = a(n-1) + a(round(2*(n-1)/3)) + a(round((n-1)/3)) with a(1)=a(2)=1.at n=35A033499
- Smallest n-digit prime containing only digits 1 and 4, or 0 if no such prime exists.at n=4A036931
- Base 10 palindromes that start with 1.at n=36A043036
- Numbers having four 1's in base 10.at n=23A043496
- Palindromic primes containing at least one pair of consecutive equal digits.at n=2A050786
- Primes p such that p-12, p and p+12 are consecutive primes.at n=7A053072
- Primes p whose period of reciprocal equals (p-1)/5.at n=24A056210
- Palindromic primes with just two distinct digits.at n=16A056730
- Primes whose sum of digits is 8.at n=39A062343
- Primes which can be expressed as concatenation of powers of 4 and 0's.at n=12A066595
- Smallest multidigit prime such that the sum of the squares of its digits is equal to n times the product of its digits, or 0 if no such prime exists.at n=4A067791
- Numbers n such that phi(n) + sigma(n) = n + reversal(n).at n=25A069217