998,568
998,568 is a composite number, even.
998,568 (nine hundred ninety-eight thousand five hundred sixty-eight) is an even 6-digit number. It is a composite number with 80 divisors, and factors as 2³ × 3⁴ × 23 × 67. Its proper divisors sum to 1,963,512, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0xF3CA8.
Interestingness
Properties
Primality
Prime factorization: 2 3 × 3 4 × 23 × 67
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√998,568 = [999; (3, 1, 1, 9, 1, 3, 1, 1, 1, 2, 10, 11, 1, 2, 1, 2, 3, 2, 1, 2, 1, 11, 10, 2, …)]
Period length 34 — the block in parentheses repeats forever.
Representations
- In words
- nine hundred ninety-eight thousand five hundred sixty-eight
- Ordinal
- 998568th
- Binary
- 11110011110010101000
- Octal
- 3636250
- Hexadecimal
- 0xF3CA8
- Base64
- Dzyo
- One's complement
- 4,293,968,727 (32-bit)
- Scientific notation
- 9.98568 × 10⁵
- As a duration
- 998,568 s = 11 days, 13 hours, 22 minutes, 48 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ϡϟηφξηʹ
- Chinese
- 九十九萬八千五百六十八
- Chinese (financial)
- 玖拾玖萬捌仟伍佰陸拾捌
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 998568, here are decompositions:
- 7 + 998561 = 998568
- 17 + 998551 = 998568
- 29 + 998539 = 998568
- 31 + 998537 = 998568
- 41 + 998527 = 998568
- 71 + 998497 = 998568
- 97 + 998471 = 998568
- 139 + 998429 = 998568
Showing the first eight; more decompositions exist.
As an unsigned 32-bit integer, this is the IPv4 address 0.15.60.168.
- Address
- 0.15.60.168
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.15.60.168
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 998,568 and was likely granted around 1911.
Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.
The digit sequence 998568 first appears in π at position 187,025 of the decimal expansion (the 187,025ordinal-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°.