3788
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 26
- Digital Root
- 8
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 4
Divisibility
- Divisor Count
- 6
- Divisor Sum
- 6636
- Proper Divisor Sum (Aliquot Sum)
- 2848
- 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
- 1892
- Möbius Function
- 0
- Radical
- 1894
- 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
- 38
- 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
- Restricted partitions.at n=12A001981
- Smallest number requiring n chisel strokes for its representation in Roman numerals.at n=31A002964
- Coordination sequence T1 for Zeolite Code PAU.at n=45A008219
- Coordination sequence T4 for Zeolite Code PAU.at n=45A008222
- Coordination sequence T6 for Zeolite Code PAU.at n=45A008224
- Coordination sequence T7 for Zeolite Code PAU.at n=45A008225
- Phi(n) + 5 | sigma(n + 5).at n=41A015784
- Twelve iterations of Reverse and Add are needed to reach a palindrome.at n=19A015993
- Powers of sqrt(3) rounded to nearest integer.at n=15A017914
- Powers of sqrt(3) rounded up.at n=15A017915
- Powers of fourth root of 3 rounded to nearest integer.at n=30A018052
- Powers of fourth root of 3 rounded up.at n=30A018053
- Terms of A001273 with trailing 9's stripped (at n=13 term becomes periodic with period 49).at n=8A018785
- Numbers k such that the continued fraction for sqrt(k) has period 44.at n=30A020383
- Convolution of odd numbers and A001950.at n=15A023659
- a(n) = Sum_{k=0..floor(n/2)} T(n-k,k), T given by A026758.at n=16A026768
- Numbers k such that the continued fraction for sqrt(k) has even period and if the last term of the periodic part is deleted the central term is 30.at n=40A031528
- Nearest integer to n^(5/2).at n=27A036488
- Numbers n such that string 8,8 occurs in the base 10 representation of n but not of n-1.at n=37A044420
- Numbers k such that string 8,8 occurs in the base 10 representation of k but not of k+1.at n=37A044801