1. Numbers
  2. Compare 2 vs 40

Compare 2 vs 40

Property240
Typeprimecomposite number
Unique factors12
Total factors14
Prime factorization2123 × 51
Prime factorization22 × 2 × 2 × 5
Divisors count28
Divisors1, 21, 2, 4, 5, 8, 10, 20, 40
Number of properties260
Additive primes1st 
Bell primes1st 
Chen primes1st 
Class 1+ primes1st 
Dihedral primes1st 
Euclid primes1st 
Factorial primes1st 
Fibonacci primes1st 
Isolated primes1st 
Kynea primes1st 
Left-truncatable primes1st 
Lucas primes1st 
Mills primes1st 
Multiplicative primes1st 
Palindromic primes1st 
Pierpont primes1st 
Pierpont primes of the 2nd kind1st 
Primes1st 
Quartan primes1st 
Restricted left-truncatable primes1st 
Right-truncatable primes1st 
Sophie germain primes1st 
Thabit primes1st 
Two-sided primes1st 
Ulam primes1st 
Wedderburn-etherington primes1st 
Roman numberalsIIXL
Base 21021010002
Base 32311113
Base 4242204
Base 5251305
Base 6261046
Base 727557
Base 828508
Base 929449
Base 102104010
Base 112113711
Base 122123412
Base 132133113
Base 142142c14
Base 152152a15
Base 162162816
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