555,440
555,440 is a composite number, even.
555,440 (five hundred fifty-five thousand four hundred forty) is an even 6-digit number. It is a composite number with 40 divisors, and factors as 2⁴ × 5 × 53 × 131. Its proper divisors sum to 770,368, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x879B0.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 23
- Digit product
- 0
- Digital root
- 5
- Palindrome
- No
- Bit width
- 20 bits
- Reversed
- 44,555
- Square (n²)
- 308,513,593,600
- Cube (n³)
- 171,360,790,429,184,000
- Divisor count
- 40
- σ(n) — sum of divisors
- 1,325,808
- φ(n) — Euler's totient
- 216,320
- Sum of prime factors
- 197
Primality
Prime factorization: 2 4 × 5 × 53 × 131
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√555,440 = [745; (3, 1, 1, 2, 4, 16, 1, 1, 12, 93, 12, 1, 1, 16, 4, 2, 1, 1, 3, 1490)]
Period length 20 — the block in parentheses repeats forever.
Representations
- In words
- five hundred fifty-five thousand four hundred forty
- Ordinal
- 555440th
- Binary
- 10000111100110110000
- Octal
- 2074660
- Hexadecimal
- 0x879B0
- Base64
- CHmw
- One's complement
- 4,294,411,855 (32-bit)
- Scientific notation
- 5.5544 × 10⁵
- As a duration
- 555,440 s = 6 days, 10 hours, 17 minutes, 20 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹 𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋
- Egyptian hieroglyphic
- 𓆐𓆐𓆐𓆐𓆐𓂍𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆
- Greek (Milesian)
- ͵φνευμʹ
- Chinese
- 五十五萬五千四百四十
- Chinese (financial)
- 伍拾伍萬伍仟肆佰肆拾
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 555440, here are decompositions:
- 19 + 555421 = 555440
- 79 + 555361 = 555440
- 103 + 555337 = 555440
- 139 + 555301 = 555440
- 163 + 555277 = 555440
- 331 + 555109 = 555440
- 349 + 555091 = 555440
- 367 + 555073 = 555440
Showing the first eight; more decompositions exist.
As an unsigned 32-bit integer, this is the IPv4 address 0.8.121.176.
- Address
- 0.8.121.176
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.8.121.176
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 555,440 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 555440 first appears in π at position 838,347 of the decimal expansion (the 838,347ordinal-suffix:th 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°.