1. Numbers
  2. Compare 1949 vs 1961

Compare 1949 vs 1961

Property19491961
Typeprimesemiprime
Unique factors12
Total factors12
Prime factorization19491371 × 531
Prime factorization194937 × 53
Divisors count24
Divisors1, 19491, 37, 53, 1961
Number of properties81
Additive primes156th 
Chen primes183rd 
Emirps95th 
Harmonic primes110th 
Long primes115th 
Primes296th 
Pythagorean primes144th 
Semiprimes 566th
Twin primes (1st member)60th 
Roman numberalsMCMXLIXMCMLXI
Base 2111100111012111101010012
Base 32200012322001223
Base 413213141322214
Base 5302445303215
Base 6130056130256
Base 75453755017
Base 83635836518
Base 92605926189
Base 10194910196110
Base 11151211152311
Base 12116512117512
Base 13b6c13b7b13
Base 149d314a0114
Base 1589e158ab15
Base 1679d167a916
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