4766
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 23
- Digital Root
- 5
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 2
Divisibility
- Divisor Count
- 4
- Divisor Sum
- 7152
- Proper Divisor Sum (Aliquot Sum)
- 2386
- 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
- 2382
- Möbius Function
- 1
- Radical
- 4766
- 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
- 51
- 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
- yes
- Odd
- no
Appears in sequences
- Number of unlabeled rooted trees with n nodes (or connected functions with a fixed point).at n=12A000081
- Numbers k such that (2^(2k+1) - 2^(k+1) + 1)/5 is prime.at n=14A006596
- Numbers k such that the continued fraction for sqrt(k) has period 48.at n=36A020387
- a(n) = n^2 + (n+1)^2 + (n+2)^2 + (n+3)^2.at n=33A027575
- Numbers k that divide the (right) concatenation of all numbers <= k written in base 2 (most significant digit on left).at n=26A029447
- 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 68.at n=8A031566
- Rooted tree triangle read by rows: a(n,k) = number of forests with n nodes and k rooted trees.at n=66A033185
- Inverse WEIGH transform of A038000.at n=22A038001
- Inverse WEIGH transform of A038000.at n=45A038001
- a(n) = Sum_{i=0..floor(n/2)} T(2i+1,n-2i-1) where T is A049627.at n=44A049631
- Convolution of odd primes with themselves.at n=13A084370
- Number of primes less than 10^n which do not contain the digit 9.at n=4A091643
- In binary representation: numbers not occurring in their factorial.at n=31A093685
- Bisection of A000081 (even part).at n=6A100034
- After the first two terms, each subsequent term is the smallest integer that is an outlier of the previous dataset, based on the criterion of 3 sample standard deviations above the mean.at n=33A103231
- Triangle of the numbers of different forests of m rooted trees of smallest order 2, i.e., without isolated vertices.at n=66A106235
- Triangle of the numbers of different forests with m rooted trees having distinct orders.at n=66A106236
- Numbers j such that (3^j)*(47#) -1 is prime.at n=33A110116
- Semiprimes a such that there exist three semiprimes b, c and d with a^3=b^3+c^3+d^3.at n=28A113490
- Number of decimal digits in the 10^n-th Motzkin number.at n=4A114473