161 (number)



Cardinal	one hundred and sixty-one
Ordinal	161st (one hundred and sixty-first)
Factorization	$7 \cdot 23$
Divisor s	7, 23
Roman Numeral	CLXI
Binary	10100001
Hexadecimal	A1

161 is an Odd Natural Number between 160 and 162 . It is the sum of five consecutive Prime Number s, namely 23 , 29 , 31 , 37 , and 41 . 161 is also a Hexagonal Pyramidal Number .

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