988,380
988,380 is a composite number, even.
988,380 (nine hundred eighty-eight thousand three hundred eighty) is an even 6-digit number. It is a composite number with 108 divisors, and factors as 2² × 3² × 5 × 17² × 19. Its proper divisors sum to 2,364,060, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0xF14DC.
Interestingness
Properties
Primality
Prime factorization: 2 2 × 3 2 × 5 × 17 2 × 19
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√988,380 = [994; (5, 1, 3, 1, 1, 6, 3, 9, 1, 4, 1, 3, 1, 6, 11, 2, 12, 2, 1, 6, 4, 1, 7, 1, …)]
Representations
- In words
- nine hundred eighty-eight thousand three hundred eighty
- Ordinal
- 988380th
- Binary
- 11110001010011011100
- Octal
- 3612334
- Hexadecimal
- 0xF14DC
- Base64
- DxTc
- One's complement
- 4,293,978,915 (32-bit)
- Scientific notation
- 9.8838 × 10⁵
- As a duration
- 988,380 s = 11 days, 10 hours, 33 minutes
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹 ·
- Egyptian hieroglyphic
- 𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆
- Greek (Milesian)
- ͵ϡπητπʹ
- Chinese
- 九十八萬八千三百八十
- Chinese (financial)
- 玖拾捌萬捌仟參佰捌拾
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 988380, here are decompositions:
- 13 + 988367 = 988380
- 23 + 988357 = 988380
- 37 + 988343 = 988380
- 59 + 988321 = 988380
- 61 + 988319 = 988380
- 67 + 988313 = 988380
- 83 + 988297 = 988380
- 101 + 988279 = 988380
Showing the first eight; more decompositions exist.
As an unsigned 32-bit integer, this is the IPv4 address 0.15.20.220.
- Address
- 0.15.20.220
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.15.20.220
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 988,380 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 988380 first appears in π at position 973,182 of the decimal expansion (the 973,182ordinal-suffix:nd 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°.