997,420
997,420 is a composite number, even.
997,420 (nine hundred ninety-seven thousand four hundred twenty) is an even 6-digit number. It is a composite number with 12 divisors, and factors as 2² × 5 × 49,871. Its proper divisors sum to 1,097,204, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0xF382C.
Interestingness
Properties
Primality
Prime factorization: 2 2 × 5 × 49871
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√997,420 = [998; (1, 2, 2, 3, 1, 1, 3, 1, 3, 1, 2, 1, 1, 5, 4, 1, 2, 7, 1, 1, 1, 94, 2, 6, …)]
Representations
- In words
- nine hundred ninety-seven thousand four hundred twenty
- Ordinal
- 997420th
- Binary
- 11110011100000101100
- Octal
- 3634054
- Hexadecimal
- 0xF382C
- Base64
- Dzgs
- One's complement
- 4,293,969,875 (32-bit)
- Scientific notation
- 9.9742 × 10⁵
- As a duration
- 997,420 s = 11 days, 13 hours, 3 minutes, 40 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒁹𒁹𒁹 𒌋𒌋𒌋𒌋
- Egyptian hieroglyphic
- 𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓎆𓎆
- Greek (Milesian)
- ͵ϡϟζυκʹ
- Chinese
- 九十九萬七千四百二十
- Chinese (financial)
- 玖拾玖萬柒仟肆佰貳拾
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 997420, here are decompositions:
- 29 + 997391 = 997420
- 41 + 997379 = 997420
- 101 + 997319 = 997420
- 113 + 997307 = 997420
- 173 + 997247 = 997420
- 257 + 997163 = 997420
- 269 + 997151 = 997420
- 311 + 997109 = 997420
Showing the first eight; more decompositions exist.
As an unsigned 32-bit integer, this is the IPv4 address 0.15.56.44.
- Address
- 0.15.56.44
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.15.56.44
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 997,420 and was likely granted around 1911.
Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.
Related reading
- Babylonian numerals — The base-60 cuneiform system that gave us 60 minutes, 60 seconds, and 360°.