3650
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 14
- Digital Root
- 5
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 1
Divisibility
- Divisor Count
- 12
- Divisor Sum
- 6882
- Proper Divisor Sum (Aliquot Sum)
- 3232
- 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
- 1440
- Möbius Function
- 0
- Radical
- 730
- 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
- yes
- Harshad Number
- no
- Narcissistic Number
- no
- Collatz Steps
- 43
- 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
- yes
- Odd
- no
Appears in sequences
- Numbers that are the sum of 2 squares in exactly 3 ways.at n=37A000443
- Numbers that are the sum of 10 positive 6th powers.at n=45A003366
- a(n) = 1 + Sum_{i=1..n} (n-i+1)*phi(i).at n=32A005598
- Coordination sequence T3 for Zeolite Code LAU.at n=43A008126
- Coordination sequence T1 for Zeolite Code ATO.at n=40A008265
- Quadruples of different integers from [ 2,n ] with no global factor.at n=18A015627
- Numbers that are the sum of 2 nonzero squares in exactly 3 ways.at n=35A025286
- Numbers that are the sum of 2 distinct nonzero squares in exactly 3 ways.at n=34A025304
- Number of cubefree words of length n on two letters.at n=19A028445
- Number of partitions in parts not of the form 7k, 7k+2 or 7k-2. Also number of partitions with 1 part of size 1 and differences between parts at distance 2 are greater than 1.at n=44A035938
- Coordination sequence T7 for Zeolite Code STT.at n=40A038419
- Base-9 palindromes that start with 5.at n=11A043032
- a(n)=(s(n)+1)/8, where s(n)=n-th base 8 palindrome that starts with 7.at n=26A043071
- Numbers whose base-5 representation contains exactly three 0's and two 1's.at n=39A045171
- Numbers k such that 255*2^k-1 is prime.at n=29A050886
- Number of 3 x n binary matrices without unit columns up to row and column permutations.at n=23A057524
- Dimension of the space of weight n cuspidal newforms for Gamma_1( 80 ).at n=37A063353
- Fixed points of A065191.at n=6A065197
- Number of fixed points in all 132- and 213-avoiding permutations of {1,2,...,n} (these are permutations with runs consisting of consecutive integers).at n=14A068018
- a(n) = sigma_2(n) + phi(n) * sigma(n).at n=39A072779