3896
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
- 3
Divisibility
- Divisor Count
- 8
- Divisor Sum
- 7320
- Proper Divisor Sum (Aliquot Sum)
- 3424
- 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
- 1944
- Möbius Function
- 0
- Radical
- 974
- 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
- yes
- Harshad Number
- no
- Narcissistic Number
- no
- Collatz Steps
- 144
- 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
- Number of pairs of consecutive integers x, x+1 such that all prime factors of both x and x+1 are at most the n-th prime.at n=18A002071
- Coordination sequence T3 for Zeolite Code AFS and BPH.at n=48A008025
- Coordination sequence T2 for Zeolite Code -WEN.at n=45A009863
- Coordination sequence T3 for Zeolite Code VSV.at n=39A009916
- Numbers n such that n is a substring of its square when both are written in base 2.at n=39A018826
- Cycle class sequence c(n) (the number of true cycles of length n in which a certain node is included) for zeolite NES = NU-87 H4[Al4Si64O136].nH2O starting with a T2 atom.at n=11A019203
- Expansion of Product_{m>=1} (1 + m*q^m)^6.at n=6A022634
- a(n+1) = a(n) converted to base 6 from base 4 (written in base 10).at n=9A023374
- Self-convolution of natural numbers >= 3.at n=23A023551
- dot_product(n,n-1,...2,1)*(7,8,...,n,1,2,3,4,5,6).at n=17A026066
- Numbers having period-4 6-digitized sequences.at n=12A031197
- Number of partitions of n with equal nonzero number of parts congruent to each of 1 and 2 (mod 4).at n=41A035549
- Number of partitions of n into parts 4k and 4k+1 with at least one part of each type.at n=54A035621
- Sum of the first n palindromes (A002113).at n=35A046489
- Numbers n such that n | 6^n + 4^n + 2^n.at n=43A057844
- Geometric mean of the digits = 6. In other words, the product of the digits is = 6^k where k is the number of digits.at n=23A061429
- Number of partitions of n with designated summands.at n=19A077285
- Arithmetic derivative of (prime(n)+1)*(prime(n+1)+1)/4.at n=25A079094
- 5th binomial transform of the periodic sequence (1,6,1,1,6,1...).at n=4A080962
- Expansion of (1+4x-sqrt(1+4x^2))/(4+6x) in powers of x.at n=24A086990