1,009,090
1,009,090 is a composite number, even.
1,009,090 (one million nine thousand ninety) is an even 7-digit number. It is a composite number with 32 divisors, and factors as 2 × 5 × 19 × 47 × 113. Written other ways, in hexadecimal, 0xF65C2.
Interestingness
Properties
- Parity
- Even
- Digit count
- 7
- Digit sum
- 19
- Digit product
- 0
- Digital root
- 1
- Palindrome
- No
- Bit width
- 20 bits
- Reversed
- 909,001
- Flips to (rotate 180°)
- 606,001
- Recamán's sequence
- a(347,271) = 1,009,090
- Square (n²)
- 1,018,262,628,100
- Cube (n³)
- 1,027,518,635,389,429,000
- Divisor count
- 32
- σ(n) — sum of divisors
- 1,969,920
- φ(n) — Euler's totient
- 370,944
- Sum of prime factors
- 186
Primality
Prime factorization: 2 × 5 × 19 × 47 × 113
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√1,009,090 = [1004; (1, 1, 6, 1, 2, 2, 1, 11, 5, 2, 1, 3, 1, 1, 1, 2, 1, 2, 14, 1, 1, 16, 11, 2, …)]
Representations
- In words
- one million nine thousand ninety
- Ordinal
- 1009090th
- Binary
- 11110110010111000010
- Octal
- 3662702
- Hexadecimal
- 0xF65C2
- Base64
- D2XC
- One's complement
- 4,293,958,205 (32-bit)
- Scientific notation
- 1.00909 × 10⁶
- As a duration
- 1,009,090 s = 11 days, 16 hours, 18 minutes, 10 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋 𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋
- Egyptian hieroglyphic
- 𓁨𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆
- Chinese
- 一百萬九千零九十
- Chinese (financial)
- 壹佰萬玖仟零玖拾
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1009090, here are decompositions:
- 29 + 1009061 = 1009090
- 41 + 1009049 = 1009090
- 53 + 1009037 = 1009090
- 83 + 1009007 = 1009090
- 101 + 1008989 = 1009090
- 107 + 1008983 = 1009090
- 167 + 1008923 = 1009090
- 179 + 1008911 = 1009090
Showing the first eight; more decompositions exist.
As an unsigned 32-bit integer, this is the IPv4 address 0.15.101.194.
- Address
- 0.15.101.194
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.15.101.194
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 1,009,090 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°.