16047
domain: N
Properties
Digital Properties
- Digit Count
- 5
- Digit Sum
- 18
- Digital Root
- 9
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 1
Divisibility
- Divisor Count
- 6
- Divisor Sum
- 23192
- Proper Divisor Sum (Aliquot Sum)
- 7145
- Abundant Number
- no
- Perfect Number
- no
- Deficient Number
- yes
- Weird Number
- no
- Untouchable Number
- no
- Primitive Abundant
- no
Derived Values
- Euler's Totient
- 10692
- Möbius Function
- 0
- Radical
- 5349
- Omega Function (Ω)
- 3
- Little Omega Function (ω)
- 2
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
- 97
- Smith Number
- no
- Vampire Number
- no
Primality
- Prime
- no
- Composite Number
- yes
- Semiprime
- no
- Squarefree Number
- no
- Prime Power
- no
- Prime Factorization
- no
- Twin Prime
- no
- Mersenne Prime
- no
- Sophie Germain Prime
- no
- Safe Prime
- no
- Powerful Number
- no
- Achilles Number
- no
- Perfect Power
- no
- Smooth Number
- no
- Carmichael Number
- no
Classification
- Even
- no
- Odd
- yes
Appears in sequences
- Numbers whose base-4 representation contains exactly three 2's and four 3's.at n=25A045152
- First of three consecutive Ulam numbers (A002858) in arithmetic progression with difference 22.at n=8A068856
- Numbers n such that p = n^2 + 2, p+2 and p+6 are consecutive primes.at n=26A086380
- Indices of primes in sequence defined by A(0) = 89, A(n) = 10*A(n-1) - 71 for n > 0.at n=15A101060
- Expansion of Product_{k >= 0} (1 + A147954(k)*x^k).at n=31A147955
- Numbers k such that (11*10^k + 91)/3 is prime.at n=21A282895
- p-INVERT of (0,1,0,1,0,1,...), where p(S) = 1 - 3 S + S^2.at n=8A291243
- Numbers k such that (26*10^k - 173)/3 is prime.at n=19A293910
- Number of partitions of 2*n into exactly n prime powers (including 1).at n=43A341154
- Number of integer partitions of 2n such that 2*(minimum) = (mean).at n=33A363132