Compare 21991 vs 22000

Property	21991	22000
Type	prime	composite number
Unique factors	1	3
Total factors	1	8
Prime factorization	21991¹	2⁴ × 5³ × 11¹
Prime factorization	21991	2 × 2 × 2 × 2 × 5 × 5 × 5 × 11
Divisors count	2	40
Divisors	1, 21991	1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 25, 40, 44, 50, 55, 80, 88, 100, 110, 125, 176, 200, 220, 250, 275, 400, 440, 500, 550, 880, 1000, 1100, 1375, 2000, 2200, 2750, 4400, 5500, 11000, 22000
Number of properties	5	0
Chen primes	1208th
Isolated primes	1720th
Primes	2463rd
Sexy primes (1st member)	742nd
Sexy prime triplets (1st member)	202nd
Roman numberals
Base 2	101010111100111₂	101010111110000₂
Base 3	1010011111₃	1010011211₃
Base 4	11113213₄	11113300₄
Base 5	1200431₅	1201000₅
Base 6	245451₆	245504₆
Base 7	121054₇	121066₇
Base 8	52747₈	52760₈
Base 9	33144₉	33154₉
Base 10	21991₁₀	22000₁₀
Base 11	15582₁₁	15590₁₁
Base 12	10887₁₂	10894₁₂
Base 13	a018₁₃	a024₁₃
Base 14	802b₁₄	8036₁₄
Base 15	67b1₁₅	67ba₁₅
Base 16	55e7₁₆	55f0₁₆