3579
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 24
- Digital Root
- 6
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 3
Divisibility
- Divisor Count
- 4
- Divisor Sum
- 4776
- Proper Divisor Sum (Aliquot Sum)
- 1197
- 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
- 2384
- Möbius Function
- 1
- Radical
- 3579
- 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
- 74
- 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
- Coordination sequence T3 for Zeolite Code BRE.at n=39A008060
- If a, b in sequence, so is ab+5.at n=41A009304
- Numbers whose base-4 representation has 4 fewer 0's than 3's.at n=37A031469
- 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 59.at n=9A031557
- Lucky numbers with size of gaps equal to 8 (upper terms).at n=41A031891
- Lucky numbers with size of gaps equal to 16 (lower terms).at n=11A031898
- Sums of 10 distinct powers of 2.at n=27A038461
- Numbers n such that string 7,9 occurs in the base 10 representation of n but not of n-1.at n=38A044411
- Numbers n such that string 7,9 occurs in the base 10 representation of n but not of n+1.at n=38A044792
- Numbers whose base-4 representation contains no 0's and exactly four 3's.at n=36A045065
- Numbers whose base-4 representation contains exactly one 1 and four 3's.at n=29A045118
- Numbers whose base-4 representation contains exactly one 2 and four 3's.at n=26A045142
- Discriminants of imaginary quadratic fields with class number 14 (negated).at n=37A046011
- a(n) = Sum_{m=1..n, k=1..m} T(m,k), array T as in A049834.at n=28A049836
- Starting positions of strings of 2 5's in the decimal expansion of Pi.at n=35A050238
- Row sums of A059720.at n=6A059726
- Intrinsic 12-palindromes: n is an intrinsic k-palindrome if it is a k-digit palindrome in some base.at n=23A060949
- CATS sequence: cube-add-then-sort variation of RATS (reverse, add then sort) sequence.at n=31A079320
- Numbers n such that RevBinary(RevDecimal(n))=RevDecimal(RevBinary(n)), where RevDecimal(n) is the decimal reversal of n (A004086) and RevBinary(n) is the binary reversal of n (A030101).at n=34A081433
- Smallest available integer which fits into the repeating pattern 13579.at n=19A098758