4103
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 8
- Digital Root
- 8
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 1
Divisibility
- Divisor Count
- 4
- Divisor Sum
- 4488
- Proper Divisor Sum (Aliquot Sum)
- 385
- 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
- 3720
- Möbius Function
- 1
- Radical
- 4103
- 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
- 157
- 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 8 positive 6th powers.at n=39A003364
- Numbers that are the sum of 11 positive 10th powers.at n=4A004811
- Numbers that are the sum of 9 positive 11th powers.at n=2A004820
- Numbers that are the sum of at most 9 positive 11th powers.at n=26A004915
- Numbers that are the sum of at most 10 positive 11th powers.at n=28A004916
- Numbers that are the sum of at most 11 positive 11th powers.at n=30A004917
- Numbers that are the sum of at most 12 positive 11th powers.at n=32A004918
- a(n) = n*(17*n - 1)/2.at n=22A022274
- Numbers whose square is a difference between 2 positive cubes in at least one way.at n=44A038597
- Numbers having three 0's in base 8.at n=13A043423
- Numbers having three 5's in base 9.at n=22A043475
- Numbers k such that the string 0,3 occurs in the base 10 representation of k but not of k-1.at n=44A044335
- Numbers having, in base 16, (sum of even run lengths)=(sum of odd run lengths).at n=6A044887
- Numbers whose base-4 representation contains exactly four 0's and two 1's.at n=6A045035
- Numbers whose base-4 representation contains exactly four 0's and no 2's.at n=23A045057
- Numbers whose base-4 representation contains exactly four 0's and one 3.at n=21A045082
- Sum of transposition distances (divided by 2) present in the permutation produced by inverses of 1..(p-1) computed in Zp, where p is n-th prime.at n=36A051864
- Positions in decimal expansion of Pi where next prime begins.at n=40A053013
- Numbers k such that phi(k) + 1 = x^2 and sigma(k) + 1 = y^2 for some x and y.at n=29A063532
- Semiprimes p1*p2 such that p2 mod p1 = 10, with p2 > p1.at n=25A064908