Compare 221990 vs 221999

Property	221990	221999
Type	composite number	prime
Unique factors	4	1
Total factors	4	1
Prime factorization	2¹ × 5¹ × 79¹ × 281¹	221999¹
Prime factorization	2 × 5 × 79 × 281	221999
Divisors count	16	2
Divisors	1, 2, 5, 10, 79, 158, 281, 395, 562, 790, 1405, 2810, 22199, 44398, 110995, 221990	1, 221999
Number of properties	0	4
Chen primes		8241st
Isolated primes		15083rd
Primes		19776th
Sophie germain primes		2240th
Roman numberals
Base 2	110110001100100110₂	110110001100101111₂
Base 3	102021111212₃	102021112012₃
Base 4	312030212₄	312030233₄
Base 5	24100430₅	24100444₅
Base 6	4431422₆	4431435₆
Base 7	1613126₇	1613141₇
Base 8	661446₈	661457₈
Base 9	367455₉	367465₉
Base 10	221990₁₀	221999₁₀
Base 11	14186a₁₁	141878₁₁
Base 12	a8572₁₂	a857b₁₂
Base 13	7a072₁₃	7a07b₁₃
Base 14	5ac86₁₄	5ac91₁₄
Base 15	45b95₁₅	45b9e₁₅
Base 16	36326₁₆	3632f₁₆