Compare 21407 vs 21409

Property	21407	21409
Type	prime	semiprime
Unique factors	1	2
Total factors	1	2
Prime factorization	21407¹	79¹ × 271¹
Prime factorization	21407	79 × 271
Divisors count	2	4
Divisors	1, 21407	1, 79, 271, 21409
Number of properties	6	1
Chen primes	1180th
Happy primes	398th
Isolated primes	1679th
Long primes	911th
Primes	2404th
Semiprimes		5422nd
Sexy primes (2nd member)	730th
Roman numberals
Base 2	101001110011111₂	101001110100001₂
Base 3	1002100212₃	1002100221₃
Base 4	11032133₄	11032201₄
Base 5	1141112₅	1141114₅
Base 6	243035₆	243041₆
Base 7	116261₇	116263₇
Base 8	51637₈	51641₈
Base 9	32325₉	32327₉
Base 10	21407₁₀	21409₁₀
Base 11	150a1₁₁	150a3₁₁
Base 12	1047b₁₂	10481₁₂
Base 13	9989₁₃	998b₁₃
Base 14	7b31₁₄	7b33₁₄
Base 15	6522₁₅	6524₁₅
Base 16	539f₁₆	53a1₁₆