998,660
998,660 is a composite number, even.
998,660 (nine hundred ninety-eight thousand six hundred sixty) is an even 6-digit number. It is a composite number with 48 divisors, and factors as 2² × 5 × 13 × 23 × 167. Its proper divisors sum to 1,372,156, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0xF3D04.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 38
- Digit product
- 0
- Digital root
- 2
- Palindrome
- No
- Bit width
- 20 bits
- Reversed
- 66,899
- Flips to (rotate 180°)
- 99,866
- Square (n²)
- 997,321,795,600
- Cube (n³)
- 995,985,384,393,896,000
- Divisor count
- 48
- σ(n) — sum of divisors
- 2,370,816
- φ(n) — Euler's totient
- 350,592
- Sum of prime factors
- 212
Primality
Prime factorization: 2 2 × 5 × 13 × 23 × 167
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√998,660 = [999; (3, 30, 1, 8, 1, 1, 2, 7, 2, 2, 3, 10, 1, 1, 24, 1, 3, 2, 8, 16, 2, 1, 1, 68, …)]
Representations
- In words
- nine hundred ninety-eight thousand six hundred sixty
- Ordinal
- 998660th
- Binary
- 11110011110100000100
- Octal
- 3636404
- Hexadecimal
- 0xF3D04
- Base64
- Dz0E
- One's complement
- 4,293,968,635 (32-bit)
- Scientific notation
- 9.9866 × 10⁵
- As a duration
- 998,660 s = 11 days, 13 hours, 24 minutes, 20 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹 𒌋𒌋
- Egyptian hieroglyphic
- 𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆
- Greek (Milesian)
- ͵ϡϟηχξʹ
- Chinese
- 九十九萬八千六百六十
- Chinese (financial)
- 玖拾玖萬捌仟陸佰陸拾
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 998660, here are decompositions:
- 7 + 998653 = 998660
- 31 + 998629 = 998660
- 37 + 998623 = 998660
- 43 + 998617 = 998660
- 109 + 998551 = 998660
- 163 + 998497 = 998660
- 241 + 998419 = 998660
- 283 + 998377 = 998660
Showing the first eight; more decompositions exist.
As an unsigned 32-bit integer, this is the IPv4 address 0.15.61.4.
- Address
- 0.15.61.4
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.15.61.4
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 998,660 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 998660 first appears in π at position 585,768 of the decimal expansion (the 585,768ordinal-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°.