3575
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 20
- Digital Root
- 2
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 3
Divisibility
- Divisor Count
- 12
- Divisor Sum
- 5208
- Proper Divisor Sum (Aliquot Sum)
- 1633
- 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
- 2400
- Möbius Function
- 0
- Radical
- 715
- Omega Function (Ω)
- 4
- 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
- 48
- Smith Number
- no
- Vampire Number
- no
Primality
- Prime
- no
- Composite Number
- yes
- Semiprime
- no
- Squarefree Number
- no
- 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
- Degrees of irreducible representations of alternating group A_13.at n=25A003868
- Degrees of irreducible representations of symmetric group S_13.at n=48A003877
- Degrees of irreducible representations of symmetric group S_13.at n=47A003877
- a(n) = n*(n+1)*(n+8)/6.at n=25A006503
- Nine iterations of Reverse and Add are needed to reach a palindrome.at n=17A015990
- Cycle class sequence c(n) (the number of true cycles of length n in which a certain node is included) for zeolite MFS = ZSM-57 H1.5[Al1.5Si34.5O72] starting with a T4 atom.at n=11A019172
- Numerator of n*(n-2)*(2*n-1)/(2*(n-1)).at n=11A022997
- a(n) = Sum_{i=0..n} Sum_{j=0..i} T(i,j), T given by A026519.at n=9A026533
- a(n) = Sum_{k=0..floor(n/2)} A027144(n-k, k).at n=14A027154
- a(n) = Sum_{k=1..n+1} A027960(n+1, n+1+k).at n=9A027974
- Duplicate of A027974.at n=9A027983
- Numbers whose base-4 representation has 4 fewer 0's than 3's.at n=36A031469
- Sums of 10 distinct powers of 2.at n=26A038461
- Denominators of continued fraction convergents to sqrt(873).at n=9A042687
- Base-4 palindromes that start with 3.at n=33A043005
- Numbers n such that string 7,5 occurs in the base 10 representation of n but not of n-1.at n=38A044407
- Numbers n such that string 7,5 occurs in the base 10 representation of n but not of n+1.at n=38A044788
- Numbers whose base-4 representation contains no 0's and exactly four 3's.at n=35A045065
- Numbers whose base-4 representation contains exactly two 1's and four 3's.at n=7A045123
- Numbers whose base-4 representation contains no 2's and exactly four 3's.at n=33A045137