Compare 249721 vs 249728

Property	249721	249728
Type	prime	composite number
Unique factors	1	2
Total factors	1	8
Prime factorization	249721¹	2⁷ × 1951¹
Prime factorization	249721	2 × 2 × 2 × 2 × 2 × 2 × 2 × 1951
Divisors count	2	16
Divisors	1, 249721	1, 2, 4, 8, 16, 32, 64, 128, 1951, 3902, 7804, 15608, 31216, 62432, 124864, 249728
Number of properties	4	0
Isolated primes	16850th
Primes	22021st
Sexy primes (1st member)	5140th
Ulam primes	1579th
Roman numberals
Base 2	111100111101111001₂	111100111110000000₂
Base 3	110200112221₃	110200120012₃
Base 4	330331321₄	330332000₄
Base 5	30442341₅	30442403₅
Base 6	5204041₆	5204052₆
Base 7	2060023₇	2060033₇
Base 8	747571₈	747600₈
Base 9	420487₉	420505₉
Base 10	249721₁₀	249728₁₀
Base 11	16068a₁₁	160696₁₁
Base 12	100621₁₂	100628₁₂
Base 13	89884₁₃	8988b₁₃
Base 14	67013₁₄	6701a₁₄
Base 15	4ded1₁₅	4ded8₁₅
Base 16	3cf79₁₆	3cf80₁₆