1,005,042
1,005,042 is a composite number, even.
1,005,042 (one million five thousand forty-two) is an even 7-digit number. It is a composite number with 16 divisors, and factors as 2 × 3 × 191 × 877. Its proper divisors sum to 1,017,870, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0xF55F2.
Interestingness
Properties
- Parity
- Even
- Digit count
- 7
- Digit sum
- 12
- Digit product
- 0
- Digital root
- 3
- Palindrome
- No
- Bit width
- 20 bits
- Reversed
- 2,405,001
- Square (n²)
- 1,010,109,421,764
- Cube (n³)
- 1,015,202,393,468,534,088
- Divisor count
- 16
- σ(n) — sum of divisors
- 2,022,912
- φ(n) — Euler's totient
- 332,880
- Sum of prime factors
- 1,073
Primality
Prime factorization: 2 × 3 × 191 × 877
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√1,005,042 = [1002; (1, 1, 13, 1, 1, 11, 2, 1, 7, 1, 13, 7, 3, 16, 3, 1, 27, 2, 17, 1, 1, 2, 1, 24, …)]
Representations
- In words
- one million five thousand forty-two
- Ordinal
- 1005042nd
- Binary
- 11110101010111110010
- Octal
- 3652762
- Hexadecimal
- 0xF55F2
- Base64
- D1Xy
- One's complement
- 4,293,962,253 (32-bit)
- Scientific notation
- 1.005042 × 10⁶
- As a duration
- 1,005,042 s = 11 days, 15 hours, 10 minutes, 42 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋 𒌋𒌋𒌋𒌋𒁹𒁹
- Egyptian hieroglyphic
- 𓁨𓆼𓆼𓆼𓆼𓆼𓎆𓎆𓎆𓎆𓏺𓏺
- Chinese
- 一百萬五千零四十二
- Chinese (financial)
- 壹佰萬伍仟零肆拾貳
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1005042, here are decompositions:
- 13 + 1005029 = 1005042
- 23 + 1005019 = 1005042
- 29 + 1005013 = 1005042
- 61 + 1004981 = 1005042
- 79 + 1004963 = 1005042
- 131 + 1004911 = 1005042
- 139 + 1004903 = 1005042
- 263 + 1004779 = 1005042
Showing the first eight; more decompositions exist.
As an unsigned 32-bit integer, this is the IPv4 address 0.15.85.242.
- Address
- 0.15.85.242
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.15.85.242
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 1,005,042 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°.