3058
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 16
- Digital Root
- 7
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 1
Divisibility
- Divisor Count
- 8
- Divisor Sum
- 5040
- Proper Divisor Sum (Aliquot Sum)
- 1982
- 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
- 1380
- Möbius Function
- -1
- Radical
- 3058
- Omega Function (Ω)
- 3
- Little Omega Function (ω)
- 3
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
- 61
- Smith Number
- no
- Vampire Number
- no
Primality
- Prime
- no
- Composite Number
- yes
- Semiprime
- no
- 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 restricted 3 X 3 matrices with row and column sums n.at n=32A005045
- Theta series of laminated lattice LAMBDA_9.at n=4A005933
- Coordination sequence T2 for Zeolite Code DAC.at n=35A008068
- Coordination sequence T1 for Zeolite Code CON.at n=39A009868
- Nearest integer to Gamma(n+3/4).at n=7A014522
- Super-3 Numbers (3n^3 contains substring '333' in its decimal expansion).at n=23A014569
- Expansion of 1/(1 - x^11 - x^12 - ...).at n=64A017905
- Fibonacci sequence beginning 2, 20.at n=12A022372
- Expansion of 1/Product_{m>=1} (1 - m*q^m)^2.at n=9A022726
- Expansion of 1/Product_{m>=1} (1 - m*q^m)^22.at n=3A022746
- a(n) = 1*t(n) + 2*t(n-1) + ... + k*t(n+1-k), where k=floor((n+1)/2) and t is A000201 (lower Wythoff sequence).at n=26A023866
- Sequence A025513 divided by 2.at n=20A025514
- 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 54.at n=11A031552
- G.f.: Product_{k>=1} (1 + 2*x^k).at n=26A032302
- Numbers n such that string 5,8 occurs in the base 10 representation of n but not of n-1.at n=33A044390
- Numbers n such that string 5,8 occurs in the base 10 representation of n but not of n+1.at n=33A044771
- Composite numbers whose 3 prime factors are distinct in length.at n=13A046443
- Number of putative parameter sets for orthogonal arrays with 2^n runs.at n=6A049082
- Total number of odd parts in all partitions of n.at n=19A066897
- Number of n-digit triangular numbers.at n=6A068094