998,722
998,722 is a composite number, even.
998,722 (nine hundred ninety-eight thousand seven hundred twenty-two) is an even 6-digit number. It is a composite number with 4 divisors, and factors as 2 × 499,361. Written other ways, in hexadecimal, 0xF3D42.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 37
- Digit product
- 18,144
- Digital root
- 1
- Palindrome
- No
- Bit width
- 20 bits
- Reversed
- 227,899
- Square (n²)
- 997,445,633,284
- Cube (n³)
- 996,170,897,764,663,048
- Divisor count
- 4
- σ(n) — sum of divisors
- 1,498,086
- φ(n) — Euler's totient
- 499,360
- Sum of prime factors
- 499,363
Primality
Prime factorization: 2 × 499361
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√998,722 = [999; (2, 1, 3, 2, 1, 1, 1, 3, 31, 2, 4, 1, 1, 14, 25, 1, 1, 3, 1, 34, 3, 2, 15, 15, …)]
Period length 47 — the block in parentheses repeats forever.
Representations
- In words
- nine hundred ninety-eight thousand seven hundred twenty-two
- Ordinal
- 998722nd
- Binary
- 11110011110101000010
- Octal
- 3636502
- Hexadecimal
- 0xF3D42
- Base64
- Dz1C
- One's complement
- 4,293,968,573 (32-bit)
- Scientific notation
- 9.98722 × 10⁵
- As a duration
- 998,722 s = 11 days, 13 hours, 25 minutes, 22 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓏺𓏺
- Greek (Milesian)
- ͵ϡϟηψκβʹ
- Chinese
- 九十九萬八千七百二十二
- Chinese (financial)
- 玖拾玖萬捌仟柒佰貳拾貳
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 998722, here are decompositions:
- 5 + 998717 = 998722
- 41 + 998681 = 998722
- 71 + 998651 = 998722
- 89 + 998633 = 998722
- 251 + 998471 = 998722
- 293 + 998429 = 998722
- 311 + 998411 = 998722
- 449 + 998273 = 998722
Showing the first eight; more decompositions exist.
As an unsigned 32-bit integer, this is the IPv4 address 0.15.61.66.
- Address
- 0.15.61.66
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.15.61.66
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 998,722 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 998722 first appears in π at position 199,822 of the decimal expansion (the 199,822ordinal-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°.