998,816
998,816 is a composite number, even.
998,816 (nine hundred ninety-eight thousand eight hundred sixteen) is an even 6-digit number. It is a composite number with 60 divisors, and factors as 2⁵ × 7⁴ × 13. Its proper divisors sum to 1,471,666, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0xF3DA0.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 41
- Digit product
- 31,104
- Digital root
- 5
- Palindrome
- No
- Bit width
- 20 bits
- Reversed
- 618,899
- Flips to (rotate 180°)
- 918,866
- Square (n²)
- 997,633,401,856
- Cube (n³)
- 996,452,203,908,202,496
- Divisor count
- 60
- σ(n) — sum of divisors
- 2,470,482
- φ(n) — Euler's totient
- 395,136
- Sum of prime factors
- 51
Primality
Prime factorization: 2 5 × 7 4 × 13
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√998,816 = [999; (2, 2, 4, 1, 2, 2, 8, 1, 1, 1, 18, 1, 3, 40, 1, 1, 5, 1, 11, 1, 1, 1, 4, 1, …)]
Representations
- In words
- nine hundred ninety-eight thousand eight hundred sixteen
- Ordinal
- 998816th
- Binary
- 11110011110110100000
- Octal
- 3636640
- Hexadecimal
- 0xF3DA0
- Base64
- Dz2g
- One's complement
- 4,293,968,479 (32-bit)
- Scientific notation
- 9.98816 × 10⁵
- As a duration
- 998,816 s = 11 days, 13 hours, 26 minutes, 56 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ϡϟηωιϛʹ
- Chinese
- 九十九萬八千八百一十六
- Chinese (financial)
- 玖拾玖萬捌仟捌佰壹拾陸
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 998816, here are decompositions:
- 3 + 998813 = 998816
- 37 + 998779 = 998816
- 67 + 998749 = 998816
- 73 + 998743 = 998816
- 79 + 998737 = 998816
- 127 + 998689 = 998816
- 163 + 998653 = 998816
- 193 + 998623 = 998816
Showing the first eight; more decompositions exist.
As an unsigned 32-bit integer, this is the IPv4 address 0.15.61.160.
- Address
- 0.15.61.160
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.15.61.160
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 998,816 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 998816 first appears in π at position 415,289 of the decimal expansion (the 415,289ordinal-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°.