1,005,072
1,005,072 is a composite number, even.
1,005,072 (one million five thousand seventy-two) is an even 7-digit number. It is a composite number with 20 divisors, and factors as 2⁴ × 3 × 20,939. Its proper divisors sum to 1,591,488, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0xF5610.
Interestingness
Properties
- Parity
- Even
- Digit count
- 7
- Digit sum
- 15
- Digit product
- 0
- Digital root
- 6
- Palindrome
- No
- Bit width
- 20 bits
- Reversed
- 2,705,001
- Square (n²)
- 1,010,169,725,184
- Cube (n³)
- 1,015,293,306,030,133,248
- Divisor count
- 20
- σ(n) — sum of divisors
- 2,596,560
- φ(n) — Euler's totient
- 335,008
- Sum of prime factors
- 20,950
Primality
Prime factorization: 2 4 × 3 × 20939
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√1,005,072 = [1002; (1, 1, 7, 8, 11, 1, 7, 1, 1, 2, 1, 2, 6, 4, 86, 1, 14, 1, 2, 11, 1, 1, 9, 1, …)]
Representations
- In words
- one million five thousand seventy-two
- Ordinal
- 1005072nd
- Binary
- 11110101011000010000
- Octal
- 3653020
- Hexadecimal
- 0xF5610
- Base64
- D1YQ
- One's complement
- 4,293,962,223 (32-bit)
- Scientific notation
- 1.005072 × 10⁶
- As a duration
- 1,005,072 s = 11 days, 15 hours, 11 minutes, 12 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒁹 𒌋𒁹𒁹
- Egyptian hieroglyphic
- 𓁨𓆼𓆼𓆼𓆼𓆼𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺
- Chinese
- 一百萬五千零七十二
- Chinese (financial)
- 壹佰萬伍仟零柒拾貳
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1005072, here are decompositions:
- 23 + 1005049 = 1005072
- 31 + 1005041 = 1005072
- 43 + 1005029 = 1005072
- 53 + 1005019 = 1005072
- 59 + 1005013 = 1005072
- 109 + 1004963 = 1005072
- 199 + 1004873 = 1005072
- 293 + 1004779 = 1005072
Showing the first eight; more decompositions exist.
As an unsigned 32-bit integer, this is the IPv4 address 0.15.86.16.
- Address
- 0.15.86.16
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.15.86.16
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 1,005,072 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°.