998,988
998,988 is a composite number, even.
998,988 (nine hundred ninety-eight thousand nine hundred eighty-eight) is an even 6-digit number. It is a composite number with 48 divisors, and factors as 2² × 3 × 17 × 59 × 83. Its proper divisors sum to 1,541,172, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0xF3E4C.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 51
- Digit product
- 373,248
- Digital root
- 6
- Palindrome
- No
- Bit width
- 20 bits
- Reversed
- 889,899
- Flips to (rotate 180°)
- 886,866
- Square (n²)
- 997,977,024,144
- Cube (n³)
- 996,967,071,395,566,272
- Divisor count
- 48
- σ(n) — sum of divisors
- 2,540,160
- φ(n) — Euler's totient
- 304,384
- Sum of prime factors
- 166
Primality
Prime factorization: 2 2 × 3 × 17 × 59 × 83
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√998,988 = [999; (2, 40, 3, 2, 1, 1, 1, 2, 10, 3, 1, 23, 24, 23, 1, 3, 10, 2, 1, 1, 1, 2, 3, 40, …)]
Period length 26 — the block in parentheses repeats forever.
Representations
- In words
- nine hundred ninety-eight thousand nine hundred eighty-eight
- Ordinal
- 998988th
- Binary
- 11110011111001001100
- Octal
- 3637114
- Hexadecimal
- 0xF3E4C
- Base64
- Dz5M
- One's complement
- 4,293,968,307 (32-bit)
- Scientific notation
- 9.98988 × 10⁵
- As a duration
- 998,988 s = 11 days, 13 hours, 29 minutes, 48 seconds
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ϡϟηϡπηʹ
- Chinese
- 九十九萬八千九百八十八
- Chinese (financial)
- 玖拾玖萬捌仟玖佰捌拾捌
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 998988, here are decompositions:
- 5 + 998983 = 998988
- 19 + 998969 = 998988
- 31 + 998957 = 998988
- 37 + 998951 = 998988
- 41 + 998947 = 998988
- 47 + 998941 = 998988
- 61 + 998927 = 998988
- 71 + 998917 = 998988
Showing the first eight; more decompositions exist.
As an unsigned 32-bit integer, this is the IPv4 address 0.15.62.76.
- Address
- 0.15.62.76
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.15.62.76
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 998,988 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 998988 first appears in π at position 500,249 of the decimal expansion (the 500,249ordinal-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°.