988,900
988,900 is a composite number, even.
988,900 (nine hundred eighty-eight thousand nine hundred) is an even 6-digit number. It is a composite number with 72 divisors, and factors as 2² × 5² × 11 × 29 × 31. Its proper divisors sum to 1,510,940, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0xF16E4.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 34
- Digit product
- 0
- Digital root
- 7
- Palindrome
- No
- Bit width
- 20 bits
- Reversed
- 9,889
- Flips to (rotate 180°)
- 6,886
- Square (n²)
- 977,923,210,000
- Cube (n³)
- 967,068,262,369,000,000
- Divisor count
- 72
- σ(n) — sum of divisors
- 2,499,840
- φ(n) — Euler's totient
- 336,000
- Sum of prime factors
- 85
Primality
Prime factorization: 2 2 × 5 2 × 11 × 29 × 31
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√988,900 = [994; (2, 3, 3, 6, 1, 2, 3, 7, 2, 7, 1, 23, 1, 2, 20, 2, 1, 1, 1, 2, 1, 4, 1, 3, …)]
Representations
- In words
- nine hundred eighty-eight thousand nine hundred
- Ordinal
- 988900th
- Binary
- 11110001011011100100
- Octal
- 3613344
- Hexadecimal
- 0xF16E4
- Base64
- Dxbk
- One's complement
- 4,293,978,395 (32-bit)
- Scientific notation
- 9.889 × 10⁵
- As a duration
- 988,900 s = 11 days, 10 hours, 41 minutes, 40 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹 𒌋𒌋𒌋𒌋
- Egyptian hieroglyphic
- 𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢
- Greek (Milesian)
- ͵ϡπηϡʹ
- Chinese
- 九十八萬八千九百
- Chinese (financial)
- 玖拾捌萬捌仟玖佰
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 988900, here are decompositions:
- 23 + 988877 = 988900
- 41 + 988859 = 988900
- 71 + 988829 = 988900
- 137 + 988763 = 988900
- 167 + 988733 = 988900
- 173 + 988727 = 988900
- 239 + 988661 = 988900
- 251 + 988649 = 988900
Showing the first eight; more decompositions exist.
As an unsigned 32-bit integer, this is the IPv4 address 0.15.22.228.
- Address
- 0.15.22.228
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.15.22.228
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 988,900 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 988900 first appears in π at position 389,786 of the decimal expansion (the 389,786ordinal-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°.