990,106
990,106 is a composite number, even.
990,106 (nine hundred ninety thousand one hundred six) is an even 6-digit number. It is a composite number with 16 divisors, and factors as 2 × 13 × 113 × 337. Written other ways, in hexadecimal, 0xF1B9A.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 25
- Digit product
- 0
- Digital root
- 7
- Palindrome
- No
- Bit width
- 20 bits
- Reversed
- 601,099
- Flips to (rotate 180°)
- 901,066
- Square (n²)
- 980,309,891,236
- Cube (n³)
- 970,610,705,172,111,016
- Divisor count
- 16
- σ(n) — sum of divisors
- 1,618,344
- φ(n) — Euler's totient
- 451,584
- Sum of prime factors
- 465
Primality
Prime factorization: 2 × 13 × 113 × 337
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√990,106 = [995; (24, 1, 1, 3, 6, 2, 5, 1, 14, 1, 1, 2, 1, 1, 3, 1, 2, 3, 2, 1, 7, 1, 4, 4, …)]
Period length 47 — the block in parentheses repeats forever.
Representations
- In words
- nine hundred ninety thousand one hundred six
- Ordinal
- 990106th
- Binary
- 11110001101110011010
- Octal
- 3615632
- Hexadecimal
- 0xF1B9A
- Base64
- Dxua
- One's complement
- 4,293,977,189 (32-bit)
- Scientific notation
- 9.90106 × 10⁵
- As a duration
- 990,106 s = 11 days, 11 hours, 1 minute, 46 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹 𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓍢𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ϡϟρϛʹ
- Chinese
- 九十九萬零一百零六
- Chinese (financial)
- 玖拾玖萬零壹佰零陸
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 990106, here are decompositions:
- 53 + 990053 = 990106
- 83 + 990023 = 990106
- 107 + 989999 = 990106
- 167 + 989939 = 990106
- 197 + 989909 = 990106
- 233 + 989873 = 990106
- 269 + 989837 = 990106
- 353 + 989753 = 990106
Showing the first eight; more decompositions exist.
As an unsigned 32-bit integer, this is the IPv4 address 0.15.27.154.
- Address
- 0.15.27.154
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.15.27.154
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 990,106 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 990106 first appears in π at position 535,864 of the decimal expansion (the 535,864ordinal-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°.