998,784
998,784 is a composite number, even.
998,784 (nine hundred ninety-eight thousand seven hundred eighty-four) is an even 6-digit number. It is a composite number with 96 divisors, and factors as 2⁷ × 3³ × 17². Its proper divisors sum to 2,132,616, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0xF3D80.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 45
- Digit product
- 145,152
- Digital root
- 9
- Palindrome
- No
- Bit width
- 20 bits
- Reversed
- 487,899
- Square (n²)
- 997,569,478,656
- Cube (n³)
- 996,356,434,169,954,304
- Divisor count
- 96
- σ(n) — sum of divisors
- 3,131,400
- φ(n) — Euler's totient
- 313,344
- Sum of prime factors
- 57
Primality
Prime factorization: 2 7 × 3 3 × 17 2
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√998,784 = [999; (2, 1, 1, 4, 3, 2, 15, 5, 2, 8, 2, 2, 1, 124, 4, 1, 2, 1, 1, 6, 2, 1, 14, 1, …)]
Period length 60 — the block in parentheses repeats forever.
Representations
- In words
- nine hundred ninety-eight thousand seven hundred eighty-four
- Ordinal
- 998784th
- Binary
- 11110011110110000000
- Octal
- 3636600
- Hexadecimal
- 0xF3D80
- Base64
- Dz2A
- One's complement
- 4,293,968,511 (32-bit)
- Scientific notation
- 9.98784 × 10⁵
- As a duration
- 998,784 s = 11 days, 13 hours, 26 minutes, 24 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ϡϟηψπδʹ
- Chinese
- 九十九萬八千七百八十四
- Chinese (financial)
- 玖拾玖萬捌仟柒佰捌拾肆
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 998784, here are decompositions:
- 5 + 998779 = 998784
- 41 + 998743 = 998784
- 47 + 998737 = 998784
- 67 + 998717 = 998784
- 97 + 998687 = 998784
- 103 + 998681 = 998784
- 131 + 998653 = 998784
- 151 + 998633 = 998784
Showing the first eight; more decompositions exist.
As an unsigned 32-bit integer, this is the IPv4 address 0.15.61.128.
- Address
- 0.15.61.128
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.15.61.128
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 998,784 and was likely granted around 1911.
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°.