16708
domain: N
Properties
Digital Properties
- Digit Count
- 5
- Digit Sum
- 22
- Digital Root
- 4
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 1
Divisibility
- Divisor Count
- 6
- Divisor Sum
- 29246
- Proper Divisor Sum (Aliquot Sum)
- 12538
- Abundant Number
- no
- Perfect Number
- no
- Deficient Number
- yes
- Weird Number
- no
- Untouchable Number
- no
- Primitive Abundant
- no
Derived Values
- Euler's Totient
- 8352
- Möbius Function
- 0
- Radical
- 8354
- 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
- 128
- 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
- yes
- Odd
- no
Appears in sequences
- Numbers whose set of base-16 digits is {1,4}.at n=25A032828
- Trajectory of 3 under map n->41n+1 if n odd, n->n/2 if n even.at n=13A037118
- Sums of 4 distinct powers of 4.at n=43A038472
- Base-8 palindromes that start with 4.at n=23A043024
- Numbers whose base-7 representation contains exactly four 6's.at n=16A043420
- Numbers whose base-4 representation contains exactly four 0's and four 1's.at n=8A045037
- Numbers whose base-5 representation contains exactly three 1's and three 3's.at n=22A045247
- Number of primes between n^4 and (n+1)^4.at n=39A061235
- Numbers k such that Pi^k - 1/phi is closer to its nearest integer than any value of Pi^j - 1/phi for 1 <= j < k.at n=11A080281
- Numbers in base 10 that are palindromic in bases 7 and 8.at n=17A099145
- Record values in A131361.at n=16A131362
- Numbers that are 5-digit palindromes in at least two bases.at n=22A180454
- Number of 4-step one or two space at a time bishop's tours on an n X n board summed over all starting positions.at n=9A187048
- Number of (w,x,y,z) with all terms in {1,...,n} and w^2<x*y*z.at n=12A212063
- Numbers k such that k!*2^k + 1 is prime.at n=3A256594
- Sum of sums of omegas of the parts over all strict integer partitions of n.at n=45A325515
- a(1)=2, a(2)=3; then a(n+1) = smallest k such that S(k) = S(a(n)) + S(a(n-1)), (n>=2), where S is sopfr (A001414).at n=16A330988
- Number of partitions of n such that 5*(least part) + 1 = greatest part.at n=57A363077
- Least number k such that there are exactly n ways to choose a multiset consisting of a binary index of each binary index of k.at n=22A367913