555,390
555,390 is a composite number, even.
555,390 (five hundred fifty-five thousand three hundred ninety) is an even 6-digit number. It is a composite number with 96 divisors, and factors as 2 × 3³ × 5 × 11² × 17. Its proper divisors sum to 1,168,290, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x8797E.
Interestingness
Properties
Primality
Prime factorization: 2 × 3 3 × 5 × 11 2 × 17
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√555,390 = [745; (4, 12, 14, 1, 2, 11, 1, 42, 1, 11, 2, 1, 14, 12, 4, 1490)]
Period length 16 — the block in parentheses repeats forever.
Representations
- In words
- five hundred fifty-five thousand three hundred ninety
- Ordinal
- 555390th
- Binary
- 10000111100101111110
- Octal
- 2074576
- Hexadecimal
- 0x8797E
- Base64
- CHl+
- One's complement
- 4,294,411,905 (32-bit)
- Scientific notation
- 5.5539 × 10⁵
- As a duration
- 555,390 s = 6 days, 10 hours, 16 minutes, 30 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹 𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋
- Egyptian hieroglyphic
- 𓆐𓆐𓆐𓆐𓆐𓂍𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆
- Greek (Milesian)
- ͵φνετϟʹ
- Chinese
- 五十五萬五千三百九十
- Chinese (financial)
- 伍拾伍萬伍仟參佰玖拾
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 555390, here are decompositions:
- 7 + 555383 = 555390
- 29 + 555361 = 555390
- 41 + 555349 = 555390
- 53 + 555337 = 555390
- 83 + 555307 = 555390
- 89 + 555301 = 555390
- 97 + 555293 = 555390
- 103 + 555287 = 555390
Showing the first eight; more decompositions exist.
As an unsigned 32-bit integer, this is the IPv4 address 0.8.121.126.
- Address
- 0.8.121.126
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.8.121.126
Unspecified address (0.0.0.0/8) — "this network" placeholder.
This number falls in the range of US utility patent numbers. If it's a patent, it would be issued as US 555,390 and was likely granted around 1895.
Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.
Related reading
- Babylonian numerals — The base-60 cuneiform system that gave us 60 minutes, 60 seconds, and 360°.