12043
domain: N
Properties
Digital Properties
- Digit Count
- 5
- Digit Sum
- 10
- Digital Root
- 1
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 1
Divisibility
- Divisor Count
- 2
- Divisor Sum
- 12044
- 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
- 12042
- Möbius Function
- -1
- Radical
- 12043
- 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
- 50
- 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
- yes
- Mersenne Prime
- no
- Sophie Germain Prime
- no
- Safe Prime
- no
- Powerful Number
- no
- Achilles Number
- no
- Prime Index
- 1443
- Perfect Power
- no
- Smooth Number
- no
- Carmichael Number
- no
Classification
- Even
- no
- Odd
- yes
Appears in sequences
- Positive numbers k such that k and 2*k are anagrams in base 6 (written in base 6).at n=3A023064
- Positive numbers k such that k and 3*k are anagrams in base 6 (written in base 6).at n=3A023065
- Discriminants of imaginary quadratic fields with class number 13 (negated).at n=32A046010
- Primes whose digits can be arranged in increasing cyclic order - to form a substring of 123456789012345678901234567890...at n=27A068710
- Five-digit primes which use each of the decimal digits 0 through 4 exactly once.at n=1A109176
- Number of binary sequences of length n containing exactly one subsequence 0000.at n=16A118898
- Cyclops primes.at n=27A134809
- Primes of the form 7x^2+195y^2.at n=39A140018
- Primes of the form 210k + 73.at n=29A140857
- Primes congruent to 18 mod 37.at n=41A142127
- Primes congruent to 30 mod 41.at n=38A142227
- Primes congruent to 3 mod 43.at n=36A142252
- Primes congruent to 11 mod 47.at n=30A142362
- Primes congruent to 38 mod 49.at n=31A142446
- Primes congruent to 7 mod 51.at n=42A142480
- Primes congruent to 12 mod 53.at n=30A142542
- Primes congruent to 53 mod 55.at n=37A142639
- Primes congruent to 16 mod 57.at n=34A142675
- Primes congruent to 7 mod 59.at n=22A142734
- Primes congruent to 26 mod 61.at n=22A142824