551,000
551,000 is a composite number, even.
551,000 (five hundred fifty-one thousand) is an even 6-digit number. It is a composite number with 64 divisors, and factors as 2³ × 5³ × 19 × 29. Its proper divisors sum to 853,000, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x86858.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 11
- Digit product
- 0
- Digital root
- 2
- Palindrome
- No
- Bit width
- 20 bits
- Reversed
- 155
- Recamán's sequence
- a(187,552) = 551,000
- Square (n²)
- 303,601,000,000
- Cube (n³)
- 167,284,151,000,000,000
- Divisor count
- 64
- σ(n) — sum of divisors
- 1,404,000
- φ(n) — Euler's totient
- 201,600
- Sum of prime factors
- 69
Primality
Prime factorization: 2 3 × 5 3 × 19 × 29
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√551,000 = [742; (3, 2, 2, 8, 1, 4, 4, 8, 1, 58, 2, 29, 1, 4, 20, 1, 2, 2, 3, 59, 10, 1, 8, 1, …)]
Period length 50 — the block in parentheses repeats forever.
Representations
- In words
- five hundred fifty-one thousand
- Ordinal
- 551000th
- Binary
- 10000110100001011000
- Octal
- 2064130
- Hexadecimal
- 0x86858
- Base64
- CGhY
- One's complement
- 4,294,416,295 (32-bit)
- Scientific notation
- 5.51 × 10⁵
- As a duration
- 551,000 s = 6 days, 9 hours, 3 minutes, 20 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹 𒁹𒁹𒁹 𒌋𒌋
- Egyptian hieroglyphic
- 𓆐𓆐𓆐𓆐𓆐𓂍𓂍𓂍𓂍𓂍𓆼
- Greek (Milesian)
- ͵φνα
- Chinese
- 五十五萬一千
- Chinese (financial)
- 伍拾伍萬壹仟
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 551000, here are decompositions:
- 3 + 550997 = 551000
- 7 + 550993 = 551000
- 31 + 550969 = 551000
- 61 + 550939 = 551000
- 97 + 550903 = 551000
- 139 + 550861 = 551000
- 157 + 550843 = 551000
- 199 + 550801 = 551000
Showing the first eight; more decompositions exist.
As an unsigned 32-bit integer, this is the IPv4 address 0.8.104.88.
- Address
- 0.8.104.88
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.8.104.88
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 551,000 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 551000 first appears in π at position 217,961 of the decimal expansion (the 217,961ordinal-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°.