1359
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 18
- Digital Root
- 9
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 3
Divisibility
- Divisor Count
- 6
- Divisor Sum
- 1976
- Proper Divisor Sum (Aliquot Sum)
- 617
- 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
- 900
- Möbius Function
- 0
- Radical
- 453
- Omega Function (Ω)
- 3
- 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
- 65
- 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
- Flavius Josephus's sieve: Start with the natural numbers; at the k-th sieving step, remove every (k+1)-st term of the sequence remaining after the (k-1)-st sieving step; iterate.at n=41A000960
- Divisors of 2^30 - 1.at n=24A003538
- Number of unlabeled trivalent 3-connected bipartite planar graphs with 2n nodes without subgraphs R1 and R4.at n=21A007085
- Coordination sequence T3 for Zeolite Code STI.at n=25A008236
- Coordination sequence T1 for Banalsite.at n=22A008249
- Coordination sequence T2 for Banalsite.at n=22A008250
- Coordination sequence T4 for Zeolite Code VNI.at n=23A009910
- Coordination sequence for FeS2-Marcasite, S position.at n=18A009954
- Expansion of 1/((1-x)*(1-2*x)*(1-x^2)).at n=9A011377
- Positive integers n such that 2^n (mod n) == 2^9 (mod n).at n=60A015931
- Cycle class sequence c(n) (the number of true cycles of length n in which a certain node is included) for zeolite BOG = Boggsite Na4Ca7[Al18Si78O192].74H2O starting with a T2 atom.at n=10A019082
- Numbers k such that the continued fraction for sqrt(k) has period 24.at n=18A020363
- a(n)-th squarefree is sum of first k squarefrees for some k.at n=31A020643
- Numbers k such that k and 7*k are anagrams.at n=1A023091
- a(n) is least k such that k and 7k are anagrams in base n (written in base 10).at n=2A023099
- Numbers k such that Fibonacci(k) == 34 (mod k).at n=16A023180
- Convolution of (F(2), F(3), F(4), ...) and A000201.at n=10A023653
- Number of 10's in all partitions of n.at n=32A024794
- Expansion of q^(5/24) / (eta(q) * eta(q^2)^2) in powers of q.at n=14A029862
- Positions of record values in A030777.at n=34A030782