Compare 421 vs 421

Unique factors11
Total factors11
Prime factorization42114211
Prime factorization421421
Divisors count22
Divisors1, 4211, 421
Number of properties66
Additive primes48th48th
Centered square primes8th8th
Lucky primes23rd23rd
Pythagorean primes40th40th
Twin primes (2nd member)22nd22nd
Roman numberalsCDXXICDXXI
Base 211010010121101001012
Base 312012131201213
Base 4122114122114
Base 53141531415
Base 61541615416
Base 71141711417
Base 864586458
Base 951795179
Base 104211042110
Base 113531135311
Base 122b1122b112
Base 132651326513
Base 142211422114
Base 151d1151d115
Base 161a5161a516
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