Compare 28 vs 43

Typecomposite numberprime
Unique factors21
Total factors31
Prime factorization22 × 71431
Prime factorization2 × 2 × 743
Divisors count62
Divisors1, 2, 4, 7, 14, 281, 43
Number of properties012
Additive primes 9th
Centered heptagonal primes 1st
Cousin primes (1st member) 6th
Left-truncatable primes 9th
Lucky primes 6th
Primes 14th
Prime triplets (2nd member) 7th
Prime triplets (3rd member) 6th
Sexy primes (2nd member) 8th
Sexy prime triplets (3rd member) 5th
Twin primes (2nd member) 6th
Wagstaff primes 3rd
Roman numberalsXXVIIIXLIII
Base 21110021010112
Base 31001311213
Base 413042234
Base 510351335
Base 64461116
Base 7407617
Base 8348538
Base 9319479
Base 1028104310
Base 1126113a11
Base 1224123712
Base 1322133413
Base 1420143114
Base 151d152d15
Base 161c162b16
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