988,420
988,420 is a composite number, even.
988,420 (nine hundred eighty-eight thousand four hundred twenty) is an even 6-digit number. It is a composite number with 24 divisors, and factors as 2² × 5 × 73 × 677. Its proper divisors sum to 1,118,804, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0xF1504.
Interestingness
Properties
Primality
Prime factorization: 2 2 × 5 × 73 × 677
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√988,420 = [994; (5, 5, 1, 1, 1, 2, 2, 4, 1, 30, 3, 1, 19, 1, 24, 4, 1, 1, 2, 7, 2, 1, 1, 1, …)]
Representations
- In words
- nine hundred eighty-eight thousand four hundred twenty
- Ordinal
- 988420th
- Binary
- 11110001010100000100
- Octal
- 3612404
- Hexadecimal
- 0xF1504
- Base64
- DxUE
- One's complement
- 4,293,978,875 (32-bit)
- Scientific notation
- 9.8842 × 10⁵
- As a duration
- 988,420 s = 11 days, 10 hours, 33 minutes, 40 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹 𒌋𒌋𒌋𒌋
- Egyptian hieroglyphic
- 𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓎆𓎆
- Greek (Milesian)
- ͵ϡπηυκʹ
- Chinese
- 九十八萬八千四百二十
- Chinese (financial)
- 玖拾捌萬捌仟肆佰貳拾
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 988420, here are decompositions:
- 3 + 988417 = 988420
- 11 + 988409 = 988420
- 53 + 988367 = 988420
- 101 + 988319 = 988420
- 107 + 988313 = 988420
- 149 + 988271 = 988420
- 263 + 988157 = 988420
- 311 + 988109 = 988420
Showing the first eight; more decompositions exist.
As an unsigned 32-bit integer, this is the IPv4 address 0.15.21.4.
- Address
- 0.15.21.4
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.15.21.4
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 988,420 and was likely granted around 1911.
Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.
The digit sequence 988420 first appears in π at position 978,749 of the decimal expansion (the 978,749ordinal-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°.