1,005,012
1,005,012 is a composite number, even.
1,005,012 (one million five thousand twelve) is an even 7-digit number. It is a composite number with 18 divisors, and factors as 2² × 3² × 27,917. Its proper divisors sum to 1,535,526, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0xF55D4.
Interestingness
Properties
- Parity
- Even
- Digit count
- 7
- Digit sum
- 9
- Digit product
- 0
- Digital root
- 9
- Palindrome
- No
- Bit width
- 20 bits
- Reversed
- 2,105,001
- Square (n²)
- 1,010,049,120,144
- Cube (n³)
- 1,015,111,486,334,161,728
- Divisor count
- 18
- σ(n) — sum of divisors
- 2,540,538
- φ(n) — Euler's totient
- 334,992
- Sum of prime factors
- 27,927
Primality
Prime factorization: 2 2 × 3 2 × 27917
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√1,005,012 = [1002; (1, 1, 86, 1, 2, 14, 1, 2, 1, 5, 1, 10, 1, 4, 7, 2, 2, 1, 1, 1, 2, 2, 13, 1, …)]
Representations
- In words
- one million five thousand twelve
- Ordinal
- 1005012th
- Binary
- 11110101010111010100
- Octal
- 3652724
- Hexadecimal
- 0xF55D4
- Base64
- D1XU
- One's complement
- 4,293,962,283 (32-bit)
- Scientific notation
- 1.005012 × 10⁶
- As a duration
- 1,005,012 s = 11 days, 15 hours, 10 minutes, 12 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋 𒌋𒁹𒁹
- Egyptian hieroglyphic
- 𓁨𓆼𓆼𓆼𓆼𓆼𓎆𓏺𓏺
- Chinese
- 一百萬五千零一十二
- Chinese (financial)
- 壹佰萬伍仟零壹拾貳
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1005012, here are decompositions:
- 5 + 1005007 = 1005012
- 31 + 1004981 = 1005012
- 101 + 1004911 = 1005012
- 109 + 1004903 = 1005012
- 139 + 1004873 = 1005012
- 233 + 1004779 = 1005012
- 251 + 1004761 = 1005012
- 263 + 1004749 = 1005012
Showing the first eight; more decompositions exist.
As an unsigned 32-bit integer, this is the IPv4 address 0.15.85.212.
- Address
- 0.15.85.212
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.15.85.212
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 1,005,012 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°.