2433
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
- 3
Divisibility
- Divisor Count
- 4
- Divisor Sum
- 3248
- Proper Divisor Sum (Aliquot Sum)
- 815
- 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
- 1620
- Möbius Function
- 1
- Radical
- 2433
- Omega Function (Ω)
- 2
- 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
- 45
- Smith Number
- no
- Vampire Number
- no
Primality
- Prime
- no
- Composite Number
- yes
- Semiprime
- yes
- 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
- no
- Odd
- yes
Appears in sequences
- Sum of Fibonacci (A000045) and Pell (A000129) numbers.at n=10A001932
- a(n) = ceiling(n*phi^9), where phi is the golden ratio, A001622.at n=32A004964
- Finite difference measurements.at n=4A005192
- Coordination sequence T1 for Zeolite Code MTW.at n=32A008196
- Molien series for 6-dimensional complex reflection group 4.U_4 (3) of order 2^9 .3^7 .5.7.at n=37A008581
- Numbers k such that the continued fraction for sqrt(k) has period 42.at n=20A020381
- Number of distinct products ijk with 0 <= i < j < k <= n.at n=35A027429
- 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 32.at n=15A031530
- Numbers k such that the period of the continued fraction for sqrt(k) contains exactly 20 ones.at n=37A031788
- Numbers k such that 129*2^k+1 is prime.at n=12A032414
- Concatenation of n and n + 9 or {n,n+9}.at n=23A032614
- Convolution of natural numbers n >= 1 with Fibonacci numbers F(k), for k >= 6.at n=8A037157
- Sums of 3 distinct powers of 3.at n=46A038465
- Smallest of three consecutive squarefree numbers k, k+1, k+2 of the form p*q where p and q are distinct primes.at n=29A039833
- Numbers having three 3's in base 9.at n=6A043467
- Numbers n such that string 0,3 occurs in the base 9 representation of n but not of n-1.at n=32A044254
- Numbers n such that string 3,3 occurs in the base 10 representation of n but not of n-1.at n=24A044365
- Numbers n such that string 0,3 occurs in the base 9 representation of n but not of n+1.at n=32A044635
- Numbers n such that string 3,3 occurs in the base 10 representation of n but not of n+1.at n=24A044746
- a(1) = 8; a(n) is smallest number >= a(n-1) such that the juxtaposition a(1)a(2)...a(n) is a prime.at n=25A046258