4631
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 14
- Digital Root
- 5
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 3
Divisibility
- Divisor Count
- 4
- Divisor Sum
- 5064
- Proper Divisor Sum (Aliquot Sum)
- 433
- 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
- 4200
- Möbius Function
- 1
- Radical
- 4631
- 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
- 108
- 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
- Numbers that are the sum of 5 positive 7th powers.at n=13A003372
- Numbers that are the sum of at most 5 positive 7th powers.at n=44A004867
- Duplicate of A034343.at n=10A007669
- Coordination sequence T1 for Zeolite Code AHT.at n=46A009866
- Positive integers n such that 2^n == 2^11 (mod n).at n=55A015935
- Pseudoprimes to base 67.at n=37A020195
- a(n) = Sum_{k=0..n} (k+1) * A026659(n,k).at n=9A026980
- Number of partitions of n that do not contain 4 as a part.at n=32A027338
- Numbers k such that k^3 has only odd digits.at n=14A030099
- Number of inequivalent binary linear codes of length n and any dimension k <= n containing no column of zeros.at n=10A034343
- a(n) = ceiling((n^3)/2).at n=21A036486
- Positive numbers having the same set of digits in base 7 and base 10.at n=24A037440
- Numerators of continued fraction convergents to sqrt(966).at n=4A042868
- a(n) = Sum_{i=0..2n} (-1)^i * T(i,2n-i), array T as in A048149.at n=38A049713
- Thickened cube numbers: a(n) = n*(n^2 + (n-1)^2) + (n-1)*2*n*(n-1).at n=10A050492
- Composite numbers with all divisors congruent to 1 mod 10.at n=32A068872
- a(n) = A061419(n) - A002379(n).at n=22A083198
- Map from binary trees of size n to the set of corresponding trivalent plane trees (tpt) represented as size 2n+1 general trees.at n=10A083930
- Sum of the vertices of ordered 3 prime sided prime triangles.at n=40A105101
- Binomial transform of A006053.at n=9A116423