4341
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 12
- Digital Root
- 3
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 3
Divisibility
- Divisor Count
- 4
- Divisor Sum
- 5792
- Proper Divisor Sum (Aliquot Sum)
- 1451
- 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
- 2892
- Möbius Function
- 1
- Radical
- 4341
- 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
- 46
- 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
- Number of binary necklaces of length n with no subsequence 00, excluding the necklace "0".at n=23A000358
- a(n) = 1 + n/2 + 9*n^2/2.at n=31A006137
- List of pairs of primes in reverse order.at n=6A007797
- Expansion of (1-4*x)/(1-5*x-x^2).at n=6A015449
- Numbers k such that the continued fraction for sqrt(k) has period 86.at n=5A020425
- Number of 1's in n-th term of A022470.at n=31A022472
- Number of solutions to c(1)*prime(1) +...+ c(2n+1)*prime(2n+1) = 0, where c(i) = +-1 for i > 1, c(1) = 1.at n=10A022894
- 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 42.at n=34A031540
- Numbers k such that the period of the continued fraction for sqrt(k) contains exactly 34 ones.at n=17A031802
- Numbers with exactly five distinct base-8 digits.at n=34A031985
- Number of partitions of n into parts not of the form 19k, 19k+4 or 19k-4. Also number of partitions with at most 3 parts of size 1 and differences between parts at distance 8 are greater than 1.at n=31A035973
- Positive numbers having the same set of digits in base 5 and base 10.at n=36A037433
- Number of partitions of n with equal number of parts congruent to each of 0, 1, 2 and 3 (mod 4).at n=66A046770
- Number of partitions of n with equal nonzero number of parts congruent to each of 0, 1, 2 and 3 (mod 4).at n=66A046782
- a(n)=T(n,3), array T as in A049735.at n=37A049746
- Numbers k such that k^2 has property that the sum of its digits and the product of its digits are nonzero squares.at n=45A061268
- Positive numbers whose product of digits is four times their sum.at n=41A062036
- Composites which use more than all their digits in their prime factorization.at n=39A074237
- Number of UFU-free Motzkin paths of length n.at n=11A095980
- Concatenation of twin primes in reverse order.at n=5A107309