555,540
555,540 is a composite number, even.
555,540 (five hundred fifty-five thousand five hundred forty) is an even 6-digit number. It is a composite number with 48 divisors, and factors as 2² × 3 × 5 × 47 × 197. Its proper divisors sum to 1,041,132, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x87A14.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 24
- Digit product
- 0
- Digital root
- 6
- Palindrome
- No
- Bit width
- 20 bits
- Reversed
- 45,555
- Square (n²)
- 308,624,691,600
- Cube (n³)
- 171,453,361,171,464,000
- Divisor count
- 48
- σ(n) — sum of divisors
- 1,596,672
- φ(n) — Euler's totient
- 144,256
- Sum of prime factors
- 256
Primality
Prime factorization: 2 2 × 3 × 5 × 47 × 197
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√555,540 = [745; (2, 1, 8, 2, 2, 1, 2, 1, 5, 2, 12, 2, 1, 1, 3, 1, 4, 92, 1, 23, 2, 4, 2, 1, …)]
Period length 50 — the block in parentheses repeats forever.
Representations
- In words
- five hundred fifty-five thousand five hundred forty
- Ordinal
- 555540th
- Binary
- 10000111101000010100
- Octal
- 2075024
- Hexadecimal
- 0x87A14
- Base64
- CHoU
- One's complement
- 4,294,411,755 (32-bit)
- Scientific notation
- 5.5554 × 10⁵
- As a duration
- 555,540 s = 6 days, 10 hours, 19 minutes
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹 𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 ·
- Egyptian hieroglyphic
- 𓆐𓆐𓆐𓆐𓆐𓂍𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆
- Greek (Milesian)
- ͵φνεφμʹ
- Chinese
- 五十五萬五千五百四十
- Chinese (financial)
- 伍拾伍萬伍仟伍佰肆拾
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 555540, here are decompositions:
- 17 + 555523 = 555540
- 19 + 555521 = 555540
- 53 + 555487 = 555540
- 79 + 555461 = 555540
- 101 + 555439 = 555540
- 149 + 555391 = 555540
- 157 + 555383 = 555540
- 179 + 555361 = 555540
Showing the first eight; more decompositions exist.
As an unsigned 32-bit integer, this is the IPv4 address 0.8.122.20.
- Address
- 0.8.122.20
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.8.122.20
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 555,540 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°.