990,024
990,024 is a composite number, even.
990,024 (nine hundred ninety thousand twenty-four) is an even 6-digit number. It is a composite number with 64 divisors, and factors as 2³ × 3 × 7 × 71 × 83. Its proper divisors sum to 1,913,016, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0xF1B48.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 24
- Digit product
- 0
- Digital root
- 6
- Palindrome
- No
- Bit width
- 20 bits
- Reversed
- 420,099
- Square (n²)
- 980,147,520,576
- Cube (n³)
- 970,369,568,910,733,824
- Divisor count
- 64
- σ(n) — sum of divisors
- 2,903,040
- φ(n) — Euler's totient
- 275,520
- Sum of prime factors
- 170
Primality
Prime factorization: 2 3 × 3 × 7 × 71 × 83
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√990,024 = [994; (1, 1988)]
Period length 2 — the block in parentheses repeats forever.
Representations
- In words
- nine hundred ninety thousand twenty-four
- Ordinal
- 990024th
- Binary
- 11110001101101001000
- Octal
- 3615510
- Hexadecimal
- 0xF1B48
- Base64
- DxtI
- One's complement
- 4,293,977,271 (32-bit)
- Scientific notation
- 9.90024 × 10⁵
- As a duration
- 990,024 s = 11 days, 11 hours, 24 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹 · 𒌋𒌋𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓎆𓎆𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ϡϟκδʹ
- Chinese
- 九十九萬零二十四
- Chinese (financial)
- 玖拾玖萬零貳拾肆
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 990024, here are decompositions:
- 11 + 990013 = 990024
- 23 + 990001 = 990024
- 43 + 989981 = 990024
- 47 + 989977 = 990024
- 53 + 989971 = 990024
- 73 + 989951 = 990024
- 103 + 989921 = 990024
- 107 + 989917 = 990024
Showing the first eight; more decompositions exist.
As an unsigned 32-bit integer, this is the IPv4 address 0.15.27.72.
- Address
- 0.15.27.72
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.15.27.72
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 990,024 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 990024 first appears in π at position 454,313 of the decimal expansion (the 454,313ordinal-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°.