1876
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 22
- Digital Root
- 4
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 4
Divisibility
- Divisor Count
- 12
- Divisor Sum
- 3808
- Proper Divisor Sum (Aliquot Sum)
- 1932
- 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
- 792
- Möbius Function
- 0
- Radical
- 938
- Omega Function (Ω)
- 4
- 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
- 24
- 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
- Coordination sequence for 4-dimensional I-centered tetragonal orthogonal lattice.at n=7A001386
- x^3 + n*y^3 = 1 is solvable.at n=40A005988
- Numbers k such that k^64 + 1 is prime.at n=18A006316
- Coordination sequence T5 for Zeolite Code EUO.at n=27A008100
- Coordination sequence T1 for Zeolite Code NAT.at n=29A008203
- 4-dimensional centered tetrahedral numbers.at n=9A008498
- Crystal ball sequence for planar net 4.8.8.at n=37A008577
- Pseudoprimes to base 29.at n=21A020157
- Pseudoprimes to base 37.at n=34A020165
- a(n) is least k such that k and 10k are anagrams in base n (written in base 10).at n=26A023102
- Numbers with exactly 3 0's in their base 5 expansion.at n=36A023724
- a(n) = least m such that if r and s in {1/3, 1/6, 1/9,..., 1/3n} satisfy r < s, then r < k/m < s for some integer k.at n=28A024824
- Numbers k such that k^2 + k + 1 is a palindrome.at n=14A028413
- Least term in period of continued fraction for sqrt(n) is 3.at n=33A031427
- Numbers whose base-5 representation has 3 more 0's than 4's.at n=27A031473
- Number of partitions of n with equal number of parts congruent to each of 1, 2 and 3 (mod 5).at n=49A035578
- a(n)=(s(n)+2)/5, where s(n)=n-th base 5 palindrome that starts with 3.at n=37A043052
- Numbers k such that 6 and 7 occur juxtaposed in the base-10 representation of k but not of k-1.at n=37A043255
- Numbers k such that 6 and 7 occur juxtaposed in the base-10 representation of k but not of k+1.at n=37A044035
- Numbers k such that string 3,2 occurs in the base 7 representation of k but not of k-1.at n=43A044161