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133 (number)

133 is the number equal to 100 + 30 + 3.

CardinalOne hundred [and]
thirty-three
Ordinal133rd
Factorization7 \cdot 19
Divisors7, 19
Roman numeralCXXXIII
Binary10000101
Hexadecimal85

It is the smallest n whose divisors (excluding n itself) added up divide φ(n). It is an octagonal number and a Harshad number. It is also a happy number.

Uses

The year 133 or 133 BC

Last updated: 07-25-2005 05:47:45
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