Compare 28638 vs 28643

Property	28638	28643
Type	composite number	prime
Unique factors	4	1
Total factors	5	1
Prime factorization	2¹ × 3² × 37¹ × 43¹	28643¹
Prime factorization	2 × 3 × 3 × 37 × 43	28643
Divisors count	24	2
Divisors	1, 2, 3, 6, 9, 18, 37, 43, 74, 86, 111, 129, 222, 258, 333, 387, 666, 774, 1591, 3182, 4773, 9546, 14319, 28638	1, 28643
Number of properties	0	10
Additive primes		1424th
Happy primes		504th
Harmonic primes		1165th
Isolated primes		2208th
Primes		3119th
Safe primes		255th
Sexy primes (1st member)		917th
Sophie germain primes		430th
Super primes		444th
Ulam primes		237th
Roman numberals
Base 2	110111111011110₂	110111111100011₂
Base 3	1110021200₃	1110021212₃
Base 4	12333132₄	12333203₄
Base 5	1404023₅	1404033₅
Base 6	340330₆	340335₆
Base 7	146331₇	146336₇
Base 8	67736₈	67743₈
Base 9	43250₉	43255₉
Base 10	28638₁₀	28643₁₀
Base 11	1a575₁₁	1a57a₁₁
Base 12	146a6₁₂	146ab₁₂
Base 13	1005c₁₃	10064₁₃
Base 14	a618₁₄	a61d₁₄
Base 15	8743₁₅	8748₁₅
Base 16	6fde₁₆	6fe3₁₆