Compare 1861 vs 1949

Property18611949
Typeprimeprime
Unique factors11
Total factors11
Prime factorization1861119491
Prime factorization18611949
Divisors count22
Divisors1, 18611, 1949
Number of properties108
Additive primes 156th
Centered square primes15th 
Chen primes 183rd
Emirps 95th
Good primes58th 
Harmonic primes103rd110th
Isolated primes173rd 
Long primes112th115th
Primes284th296th
Pythagorean primes137th144th
Sexy primes (1st member)120th 
Sexy prime quadrupletss (1st member)12th 
Sexy prime triplets (1st member)47th 
Twin primes (1st member) 60th
Roman numberalsMDCCCLXIMCMXLIX
Base 2111010001012111100111012
Base 32112221322000123
Base 413101141321314
Base 5244215302445
Base 6123416130056
Base 75266754537
Base 83505836358
Base 92487926059
Base 10186110194910
Base 11144211151211
Base 1210b112116512
Base 13b0213b6c13
Base 1496d149d314
Base 158411589e15
Base 167451679d16
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