555,000
555,000 is a composite number, even.
555,000 (five hundred fifty-five thousand) is an even 6-digit number. It is a composite number with 80 divisors, and factors as 2³ × 3 × 5⁴ × 37. Its proper divisors sum to 1,225,680, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x877F8.
Interestingness
Properties
Primality
Prime factorization: 2 3 × 3 × 5 4 × 37
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√555,000 = [744; (1, 58, 1, 1, 2, 59, 5, 59, 2, 1, 1, 58, 1, 1488)]
Period length 14 — the block in parentheses repeats forever.
Representations
- In words
- five hundred fifty-five thousand
- Ordinal
- 555000th
- Binary
- 10000111011111111000
- Octal
- 2073770
- Hexadecimal
- 0x877F8
- Base64
- CHf4
- One's complement
- 4,294,412,295 (32-bit)
- Scientific notation
- 5.55 × 10⁵
- As a duration
- 555,000 s = 6 days, 10 hours, 10 minutes
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹 𒌋 ·
- Egyptian hieroglyphic
- 𓆐𓆐𓆐𓆐𓆐𓂍𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼
- Greek (Milesian)
- ͵φνε
- Chinese
- 五十五萬五千
- Chinese (financial)
- 伍拾伍萬伍仟
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 555000, here are decompositions:
- 23 + 554977 = 555000
- 31 + 554969 = 555000
- 41 + 554959 = 555000
- 73 + 554927 = 555000
- 101 + 554899 = 555000
- 107 + 554893 = 555000
- 109 + 554891 = 555000
- 113 + 554887 = 555000
Showing the first eight; more decompositions exist.
As an unsigned 32-bit integer, this is the IPv4 address 0.8.119.248.
- Address
- 0.8.119.248
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.8.119.248
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 555,000 and was likely granted around 1895.
Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.
The digit sequence 555000 first appears in π at position 677,842 of the decimal expansion (the 677,842ordinal-suffix:nd digit after the integer 3).
Search range: the first 1,000,000 fractional digits of π. Any 6-digit-or-shorter string is virtually guaranteed to appear in there — the more interesting signal is the position.
Related reading
- Babylonian numerals — The base-60 cuneiform system that gave us 60 minutes, 60 seconds, and 360°.