Compare 1999 vs 2539

Unique factors11
Total factors11
Prime factorization1999125391
Prime factorization19992539
Divisors count22
Divisors1, 19991, 2539
Number of properties86
Additive primes 194th
Centered triangular primes10th 
Cousin primes (1st member)65th77th
Good primes 73rd
Isolated primes 228th
Long primes 146th
Prime triplets (2nd member)50th 
Prime triplets (3rd member)49th 
Sexy primes (2nd member)128th 
Sexy prime triplets (3rd member)50th 
Twin primes (2nd member)61st 
Base 21111100111121001111010112
Base 322020013101110013
Base 413303342132234
Base 5304445401245
Base 6131316154316
Base 755547102557
Base 83717847538
Base 92661934319
Base 10199910253910
Base 1115581119a911
Base 1211a712157712
Base 13baa13120413
Base 14a2b14cd514
Base 158d415b4415
Base 167cf169eb16
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