3088
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 19
- Digital Root
- 1
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 1
Divisibility
- Divisor Count
- 10
- Divisor Sum
- 6014
- Proper Divisor Sum (Aliquot Sum)
- 2926
- 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
- 1536
- Möbius Function
- 0
- Radical
- 386
- Omega Function (Ω)
- 5
- 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
- 123
- 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
- a(n) is the number of partitions of 3n that can be obtained by adding together three (not necessarily distinct) partitions of n.at n=9A002220
- a(n) = a(n-1) + a(n-6), with a(i) = 1 for i = 0..5.at n=35A005708
- Coordination sequence T1 for Zeolite Code AEI.at n=42A008001
- Coordination sequence T2 for Zeolite Code AEI.at n=42A008002
- Coordination sequence T5 for Zeolite Code MTT.at n=34A008193
- Partial sums of primes, if 1 is regarded as a prime (as it was until quite recently, see A008578).at n=40A014284
- Expansion of 1/(1 - x^6 - x^7 - x^8 - ...).at n=41A017900
- Sequence A025513 divided by 2.at n=41A025514
- a(n) = T(n,n+1), where T is the array defined in A025564.at n=7A025567
- a(n) = Sum_{k=0..n} T(n, k)*T(n, n+k), T given by A027960.at n=7A027984
- Number of partitions of n into parts not of forms 4*k+2, 20*k, 10*k+5.at n=42A036026
- Positive numbers having the same set of digits in base 6 and base 9.at n=16A037436
- Numbers n such that n and n-1 are differences between 2 positive cubes in at least one way.at n=6A038595
- Gaps of 8 in sequence A038593 (lower terms).at n=4A038655
- Multiples of 4 that are the difference of two positive cubes.at n=37A038849
- Multiples of 8 that are the difference of two positive cubes.at n=29A038850
- Numbers ending with '8' that are the difference of two positive cubes.at n=14A038863
- (n+4)^3 - n^3.at n=13A038866
- Denominators of continued fraction convergents to sqrt(582).at n=3A042115
- Numbers k such that string 1,1 occurs in the base 9 representation of k but not of k-1.at n=38A044261