555,500
555,500 is a composite number, even.
555,500 (five hundred fifty-five thousand five hundred) is an even 6-digit number. It is a composite number with 48 divisors, and factors as 2² × 5³ × 11 × 101. Its proper divisors sum to 781,108, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x879EC.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 20
- Digit product
- 0
- Digital root
- 2
- Palindrome
- No
- Bit width
- 20 bits
- Reversed
- 5,555
- Square (n²)
- 308,580,250,000
- Cube (n³)
- 171,416,328,875,000,000
- Divisor count
- 48
- σ(n) — sum of divisors
- 1,336,608
- φ(n) — Euler's totient
- 200,000
- Sum of prime factors
- 131
Primality
Prime factorization: 2 2 × 5 3 × 11 × 101
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√555,500 = [745; (3, 7, 3, 1, 2, 11, 1, 1, 3, 2, 78, 59, 1, 1, 1, 1, 2, 1, 1, 6, 6, 11, 1, 3, …)]
Representations
- In words
- five hundred fifty-five thousand five hundred
- Ordinal
- 555500th
- Binary
- 10000111100111101100
- Octal
- 2074754
- Hexadecimal
- 0x879EC
- Base64
- CHns
- One's complement
- 4,294,411,795 (32-bit)
- Scientific notation
- 5.555 × 10⁵
- As a duration
- 555,500 s = 6 days, 10 hours, 18 minutes, 20 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹 𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋
- Egyptian hieroglyphic
- 𓆐𓆐𓆐𓆐𓆐𓂍𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢
- Greek (Milesian)
- ͵φνεφʹ
- Chinese
- 五十五萬五千五百
- Chinese (financial)
- 伍拾伍萬伍仟伍佰
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 555500, here are decompositions:
- 13 + 555487 = 555500
- 61 + 555439 = 555500
- 79 + 555421 = 555500
- 109 + 555391 = 555500
- 139 + 555361 = 555500
- 151 + 555349 = 555500
- 163 + 555337 = 555500
- 193 + 555307 = 555500
Showing the first eight; more decompositions exist.
As an unsigned 32-bit integer, this is the IPv4 address 0.8.121.236.
- Address
- 0.8.121.236
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.8.121.236
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 555,500 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 555500 first appears in π at position 672,301 of the decimal expansion (the 672,301ordinal-suffix:st 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°.