4629
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 21
- Digital Root
- 3
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 3
Divisibility
- Divisor Count
- 4
- Divisor Sum
- 6176
- Proper Divisor Sum (Aliquot Sum)
- 1547
- Abundant Number
- no
- Perfect Number
- no
- Deficient Number
- yes
- Highly Composite
- no
- Weird Number
- no
- Untouchable Number
- no
- Primitive Abundant
- no
Derived Values
- Euler's Totient
- 3084
- Möbius Function
- 1
- Radical
- 4629
- Omega Function (Ω)
- 2
- 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
- 33
- Smith Number
- no
- Vampire Number
- no
Primality
- Prime
- no
- Composite Number
- yes
- Semiprime
- yes
- Squarefree Number
- yes
- 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
- Coordination sequence T1 for Zeolite Code LOV.at n=45A008134
- Smallest positive number that can be written as sum of distinct Fibonacci numbers in n ways.at n=59A013583
- Cycle class sequence c(2n) (the number of true cycles of length 2n in which a certain node is included) for zeolite AFT = AlPO4-52 starting with a T1 atom.at n=5A018967
- Numbers k such that the continued fraction for sqrt(k) has even period and if the last term of the periodic part is deleted the central term is 44.at n=32A031542
- Lucky numbers with size of gaps equal to 16 (lower terms).at n=16A031898
- Base-6 palindromes that start with 3.at n=34A043012
- Numbers having four 3's in base 6.at n=8A043384
- Numbers k such that 3^k + 4 is prime.at n=19A058958
- Numbers k such that the number of primes between k and 2k (inclusive) is equal to the number of primes between k and reverse(k) (inclusive).at n=19A074814
- a(n+1) is smallest number with a(n+1)^n > (a(n)+1)^(n+1), with a(1)=1.at n=8A080870
- Integers m such that the base-10 digit concatenation 2//m//3//m//5//m...//prime(49)//m//prime(50) is prime.at n=10A084048
- a(n) = the least integer of the form [prime(n+1)+prime(n+2)+...+prime(n+k)]/prime(n).at n=40A086448
- Values of n for which A095777(n) is 15 (those terms which are expressible in decimal digits for bases 2 through 16, but not for base 17).at n=38A095784
- One third of the sum of the first n primes, when an integer.at n=22A112270
- Number of sets {p, p'}, where p is a partition of n and p' is conjugate partition of p such that p and p' have no common parts.at n=54A114701
- Where A124579 has two successive identical values.at n=46A124580
- a(n) = floor(n*3^(n/2)).at n=10A128443
- Number of n X n binary arrays symmetric about both diagonal and antidiagonal with all ones connected only in a 0100-1100-1111 pattern in any orientation.at n=14A146787
- Number of walks within N^3 (the first octant of Z^3) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, 0), (-1, 1, 0), (0, 0, -1), (0, 1, 1), (1, 0, 0)}.at n=7A150173
- Row sums of Fibonacci-Pascal triangle A162745.at n=8A162746