8898
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 33
- Digital Root
- 6
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 2
Divisibility
- Divisor Count
- 8
- Divisor Sum
- 17808
- Proper Divisor Sum (Aliquot Sum)
- 8910
- Abundant Number
- yes
- Perfect Number
- no
- Deficient Number
- no
- Highly Composite
- no
- Weird Number
- no
- Untouchable Number
- no
- Primitive Abundant
- yes
Derived Values
- Euler's Totient
- 2964
- Möbius Function
- -1
- Radical
- 8898
- Omega Function (Ω)
- 3
- Little Omega Function (ω)
- 3
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
- 70
- Smith Number
- no
- Vampire Number
- no
Primality
- Prime
- no
- Composite Number
- yes
- Semiprime
- no
- Squarefree Number
- yes
- 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 unlabeled modular lattices on n nodes.at n=15A006981
- Sum of distinct prime divisors of p(n)*p(n-1) + 1.at n=50A023529
- 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 94.at n=4A031592
- Base 8 digits are, in order, the first n terms of the periodic sequence with initial period 2,1,3,0.at n=4A037741
- Mono-2-catahelicenes.at n=5A039633
- Numbers having three 8's in base 10.at n=33A043523
- Possible traces of n-step walks on 1-D lattice, ignoring translations.at n=16A048248
- Expansion of (1-x)/(1 - x - x^3 - 2*x^4 + 2*x^5).at n=23A052914
- Sum of composite numbers less than n-th prime.at n=34A079725
- Record-setting differences between adjacent elements of the Mian-Chowla sequence A005282.at n=34A080222
- a(n) is the number of binary strings of length n such that no subsequence of length 5 or less contains 3 or more ones.at n=18A120118
- "666" in bases 7 and higher rewritten in base 10.at n=31A121205
- Similar to A072921 but starting with 3.at n=37A152232
- Numbers k such that the number of digits d in k^2 is not prime and for each factor f of d the sum of the d/f digit groupings in k^2 of size f is a square.at n=28A153745
- Numbers k such that there are 8 digits in k^2 and for each factor f of 8 (1,2,4) the sum of digit groupings of size f is a square.at n=18A153746
- Number of binary strings of length n with equal numbers of 01001 and 10110 substrings.at n=14A164261
- Numbers with rounded up arithmetic mean of digits = 9.at n=21A178369
- Number of (n+2) X 5 binary arrays with each 3 X 3 subblock having rows and columns in lexicographically nondecreasing order.at n=9A184542
- Number of (n+1)X(3+1) 0..1 arrays x(i,j) with row sums sum{j*x(i,j), j=1..3+1} nondecreasing, and column sums sum{i*x(i,j), i=1..n+1} nondecreasing.at n=4A232827
- Number of (n+1)X(5+1) 0..1 arrays x(i,j) with row sums sum{j*x(i,j), j=1..5+1} nondecreasing, and column sums sum{i*x(i,j), i=1..n+1} nondecreasing.at n=2A232829