2633
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 14
- Digital Root
- 5
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 2
Divisibility
- Divisor Count
- 2
- Divisor Sum
- 2634
- Proper Divisor Sum (Aliquot Sum)
- 1
- 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
- 2632
- Möbius Function
- -1
- Radical
- 2633
- Omega Function (Ω)
- 1
- Little Omega Function (ω)
- 1
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
- 40
- Smith Number
- no
- Vampire Number
- no
Primality
- Prime
- yes
- Composite Number
- no
- Semiprime
- no
- Squarefree Number
- yes
- Prime Power
- yes
- Prime Factorization
- no
- Twin Prime
- no
- Mersenne Prime
- no
- Sophie Germain Prime
- no
- Safe Prime
- no
- Powerful Number
- no
- Achilles Number
- no
- Prime Index
- 382
- Perfect Power
- no
- Smooth Number
- no
- Carmichael Number
- no
Classification
- Even
- no
- Odd
- yes
Appears in sequences
- Numbers k such that phi(2k-1) < phi(2k), where phi is Euler's totient function A000010.at n=40A001836
- Primes of form 3*k^2 - 3*k + 23.at n=26A007637
- Coordination sequence T1 for Zeolite Code APD.at n=34A008034
- Coordination sequence T1 for Zeolite Code MEL.at n=33A008150
- Coordination sequence T1 for Zeolite Code RTE.at n=35A009890
- Coordination sequence T3 for Zeolite Code RTE.at n=35A009892
- Numbers k such that the continued fraction for sqrt(k) has period 31.at n=8A020370
- Primes that remain prime through 2 iterations of function f(x) = 10x + 9.at n=47A023270
- Greatest prime divisor of prime(n)*prime(n-1) - 1.at n=42A023517
- a(n) = prime(9*n - 5).at n=42A031909
- a(n) = prime(10*n-8).at n=38A031919
- Upper prime of a difference of 12 between consecutive primes.at n=25A031931
- Lower prime of a pair of consecutive primes having a difference of 14.at n=13A031932
- Numbers k such that 185*2^k+1 is a prime.at n=8A032469
- Concatenation of n and n+7.at n=25A032612
- Primes that are concatenations of n with n + 7.at n=3A032630
- Primes of form x^2+38*y^2.at n=29A033226
- Primes of form x^2+41*y^2.at n=18A033228
- Primes of form x^2+53*y^2.at n=28A033234
- Coordination sequence T3 for Zeolite Code SBT.at n=41A033614