3757
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 22
- Digital Root
- 4
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 3
Divisibility
- Divisor Count
- 6
- Divisor Sum
- 4298
- Proper Divisor Sum (Aliquot Sum)
- 541
- 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
- 3264
- Möbius Function
- 0
- Radical
- 221
- 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
- 87
- 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
- Numbers that are the sum of 2 squares in exactly 3 ways.at n=40A000443
- Coordination sequence T1 for Zeolite Code CHA.at n=47A008066
- Coordination sequence T4 for Zeolite Code VET.at n=37A009905
- Pseudoprimes to base 38.at n=29A020166
- Numbers that are the sum of 2 nonzero squares in exactly 3 ways.at n=38A025286
- Numbers that are the sum of 2 distinct nonzero squares in exactly 3 ways.at n=37A025304
- Sequence satisfies T^2(a)=a, where T is defined below.at n=48A027585
- Numbers whose set of base-12 digits is {1,2}.at n=26A032932
- Numbers each of whose runs of digits in base 12 has length 2.at n=23A033010
- Numbers whose base-12 expansion has no run of digits with length < 2.at n=35A033025
- Products p^3 or p^2*q, where {p,q} are consecutive primes.at n=17A033477
- Row sums up to the main diagonal of the "postage stamp" array (n,m >= 0) defined in A007059.at n=10A039671
- Number of partitions satisfying cn(0,5) + cn(2,5) <= cn(1,5) + cn(4,5) and cn(0,5) + cn(3,5) <= cn(1,5) + cn(4,5).at n=29A039887
- Positive integers having more base-12 runs of even length than odd.at n=24A044838
- Numbers whose base-5 representation contains exactly two 0's and three 1's.at n=42A045168
- a(n) = 1 - (7/6)*n + (2/3)*n^3 + (1/2)*n^4.at n=9A046998
- Number of connected vertically indecomposable partial lattices on n unlabeled nodes.at n=6A058801
- Numbers k such that phi(k) mod core(k) = 1 where core(k) is the squarefree part of k.at n=34A069946
- Numbers of the form (p0^x)(p1^(x+1))(p2^(x+2))...(pk^(x+k)), where x and k are positive integers and p0,p1,...,pk are primes with p0<p1<...<pk.at n=42A089219
- Numbers with ordered prime signature (1,2).at n=35A095990