988,988
988,988 is a composite number, even.
988,988 (nine hundred eighty-eight thousand nine hundred eighty-eight) is an even 6-digit number. It is a composite number with 72 divisors, and factors as 2² × 7 × 11 × 13² × 19. Its proper divisors sum to 1,470,532, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0xF173C.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 50
- Digit product
- 331,776
- Digital root
- 5
- Palindrome
- No
- Bit width
- 20 bits
- Reversed
- 889,889
- Flips to (rotate 180°)
- 886,886
- Square (n²)
- 978,097,264,144
- Cube (n³)
- 967,326,457,071,246,272
- Divisor count
- 72
- σ(n) — sum of divisors
- 2,459,520
- φ(n) — Euler's totient
- 336,960
- Sum of prime factors
- 67
Primality
Prime factorization: 2 2 × 7 × 11 × 13 2 × 19
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√988,988 = [994; (2, 11, 3, 1, 2, 1, 1, 11, 5, 4, 1, 10, 1, 24, 1, 10, 1, 4, 5, 11, 1, 1, 2, 1, …)]
Period length 28 — the block in parentheses repeats forever.
Representations
- In words
- nine hundred eighty-eight thousand nine hundred eighty-eight
- Ordinal
- 988988th
- Binary
- 11110001011100111100
- Octal
- 3613474
- Hexadecimal
- 0xF173C
- Base64
- Dxc8
- One's complement
- 4,293,978,307 (32-bit)
- Scientific notation
- 9.88988 × 10⁵
- As a duration
- 988,988 s = 11 days, 10 hours, 43 minutes, 8 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹 𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ϡπηϡπηʹ
- Chinese
- 九十八萬八千九百八十八
- Chinese (financial)
- 玖拾捌萬捌仟玖佰捌拾捌
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 988988, here are decompositions:
- 37 + 988951 = 988988
- 79 + 988909 = 988988
- 127 + 988861 = 988988
- 139 + 988849 = 988988
- 151 + 988837 = 988988
- 199 + 988789 = 988988
- 229 + 988759 = 988988
- 277 + 988711 = 988988
Showing the first eight; more decompositions exist.
As an unsigned 32-bit integer, this is the IPv4 address 0.15.23.60.
- Address
- 0.15.23.60
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.15.23.60
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 988,988 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 988988 first appears in π at position 314,553 of the decimal expansion (the 314,553ordinal-suffix:rd 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°.