Compare 221209 vs 221212

Property	221209	221212
Type	prime	composite number
Unique factors	1	3
Total factors	1	4
Prime factorization	221209¹	2² × 29¹ × 1907¹
Prime factorization	221209	2 × 2 × 29 × 1907
Divisors count	2	12
Divisors	1, 221209	1, 2, 4, 29, 58, 116, 1907, 3814, 7628, 55303, 110606, 221212
Number of properties	7	0
Happy primes	2995th
Harmonic primes	7397th
Isolated primes	15036th
Primes	19713th
Pythagorean primes	9835th
Sexy primes (2nd member)	4662nd
Sexy prime triplets (3rd member)	930th
Roman numberals
Base 2	110110000000011001₂	110110000000011100₂
Base 3	102020102221₃	102020110001₃
Base 4	312000121₄	312000130₄
Base 5	24034314₅	24034322₅
Base 6	4424041₆	4424044₆
Base 7	1610632₇	1610635₇
Base 8	660031₈	660034₈
Base 9	366387₉	366401₉
Base 10	221209₁₀	221212₁₀
Base 11	14121a₁₁	141222₁₁
Base 12	a8021₁₂	a8024₁₂
Base 13	798c1₁₃	798c4₁₃
Base 14	5a889₁₄	5a88c₁₄
Base 15	45824₁₅	45827₁₅
Base 16	36019₁₆	3601c₁₆