2370
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 12
- Digital Root
- 3
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 1
Divisibility
- Divisor Count
- 16
- Divisor Sum
- 5760
- Proper Divisor Sum (Aliquot Sum)
- 3390
- Abundant Number
- yes
- Perfect Number
- no
- Deficient Number
- no
- Highly Composite
- no
- Weird Number
- no
- Untouchable Number
- no
- Primitive Abundant
- no
Derived Values
- Euler's Totient
- 624
- Möbius Function
- 1
- Radical
- 2370
- Omega Function (Ω)
- 4
- Little Omega Function (ω)
- 4
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
- 151
- 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
- Squares written in base 9.at n=41A002442
- Coordination sequence T2 for Zeolite Code EMT.at n=40A008087
- Coordination sequence T5 for Zeolite Code MTT.at n=30A008193
- Triangle T(n,k) giving number of immersions of the oriented circle into the oriented plane with n double points and index k, k = -n-1, -n+1, ..., n-1, n+1.at n=31A008985
- Triangle T(n,k) giving number of immersions of the oriented circle into the oriented plane with n double points and index k, k = -n-1, -n+1, ..., n-1, n+1.at n=32A008985
- Coordination sequence T4 for Zeolite Code VNI.at n=30A009910
- Aliquot sequence starting at 966.at n=3A014363
- Cycle class sequence c(n) (the number of true cycles of length n in which a certain node is included) for zeolite MEI = ZSM-18 Nan[AlnSi34-nO68].28H2O (n=2.1-5.7) starting with a T3 atom.at n=11A019147
- a(n) = n*(21*n + 1)/2.at n=15A022279
- Positive numbers k such that k and 3*k are anagrams in base 9 (written in base 9).at n=24A023080
- a(n) = a(1)*a(n-1) + a(2)*a(n-2) + ...+ a(n-1)*a(1) for n >= 5, with initial values 1,2,1,1.at n=9A025270
- Index of 9^n within the sequence of the numbers of the form 2^i*9^j.at n=38A025734
- Terminating decimals of length n of form p/5^q using at most one of each nonzero digit.at n=27A027905
- Numbers whose set of base-9 digits is {2,3}.at n=23A032809
- Number of partitions of n into parts 5k+1 or 5k+2.at n=49A035371
- Base-9 palindromes that start with 3.at n=13A043030
- a(n)=(s(n)+6)/9, where s(n)=n-th base 9 palindrome that starts with 3.at n=40A043074
- Numbers n such that string 0,2 occurs in the base 8 representation of n but not of n-1.at n=40A044189
- Numbers k such that string 2,3 occurs in the base 9 representation of k but not of k-1.at n=32A044272
- Numbers n such that string 3,7 occurs in the base 10 representation of n but not of n-1.at n=26A044369