3753
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
- 8
- Divisor Sum
- 5600
- Proper Divisor Sum (Aliquot Sum)
- 1847
- 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
- 2484
- Möbius Function
- 0
- Radical
- 417
- Omega Function (Ω)
- 4
- 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
- 162
- 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
- a(n) = a(n-2) + a(n-5).at n=45A001687
- Number of binary words of length n in which the ones occur only in blocks of length at least 4.at n=21A005253
- Percolation series for directed square lattice.at n=20A006462
- Coordination sequence T1 for Zeolite Code EUO.at n=38A008095
- a(0) = 1, a(n) = 31*n^2 + 2 for n>0.at n=11A010020
- Number of partitions of n into parts of 9 kinds.at n=5A023008
- a(n) = Sum_{k = 1..n} k*floor((n + prime(k))/k).at n=36A024929
- Numbers that are the sum of 4 positive cubes in exactly 3 ways.at n=39A025405
- Numbers that are the sum of 4 distinct positive cubes in exactly 3 ways.at n=10A025410
- Numbers that are the sum of 4 distinct positive cubes in 3 or more ways.at n=10A025413
- Index of 9^n within the sequence of the numbers of the form 2^i*9^j.at n=48A025734
- "DHK" (bracelet, identity, unlabeled) transform of 3,3,3,3,...at n=8A032253
- Coordination sequence T1 for Zeolite Code AWO.at n=42A038406
- Numbers n such that n and n-1 are differences between 2 positive cubes in at least one way.at n=7A038595
- Divisible by 3 (and 9) and are differences between two cubes in at least one way.at n=37A038851
- Numbers ending with '3' that are the difference of two positive cubes.at n=10A038858
- Denominators of continued fraction convergents to sqrt(424).at n=9A041807
- Numbers whose base-5 representation contains exactly three 0's and two 1's.at n=41A045171
- a(1) = 7; a(n) is smallest number >= a(n-1) such that the juxtaposition a(1)a(2)...a(n) is a prime.at n=39A046257
- Matrix 9th power of partition triangle A008284.at n=49A050303