555 (number)

From HandWiki
Short description: Natural number
← 554 555 556 →
Cardinalfive hundred fifty-five
Ordinal555th
(five hundred fifty-fifth)
Factorization3 × 5 × 37
Greek numeralΦΝΕ´
Roman numeralDLV
Binary10001010112
Ternary2021203
Quaternary202234
Quinary42105
Senary23236
Octal10538
Duodecimal3A312
Hexadecimal22B16
Vigesimal17F20
Base 36FF36

555 (five hundred [and] fifty-five) is the natural number following 554 and preceding 556.

In mathematics

It is a sphenic number. In base 10, it is a repdigit, and because it is divisible by the sum of its digits, it is a Harshad number. It is also a Harshad number in binary, base 11, base 13 and hexadecimal.

Telephone numbers

The NANP reserves telephone numbers in many dialing areas in the 555 local block for fictional purposes, such as 1-308-555-3485.[1]

External links