1,005,120
1,005,120 is a composite number, even.
1,005,120 (one million five thousand one hundred twenty) is an even 7-digit number. It is a composite number with 84 divisors, and factors as 2⁶ × 3² × 5 × 349. Its proper divisors sum to 2,461,980, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0xF5640.
Interestingness
Properties
- Parity
- Even
- Digit count
- 7
- Digit sum
- 9
- Digit product
- 0
- Digital root
- 9
- Palindrome
- No
- Bit width
- 20 bits
- Reversed
- 215,001
- Square (n²)
- 1,010,266,214,400
- Cube (n³)
- 1,015,438,777,417,728,000
- Divisor count
- 84
- σ(n) — sum of divisors
- 3,467,100
- φ(n) — Euler's totient
- 267,264
- Sum of prime factors
- 372
Primality
Prime factorization: 2 6 × 3 2 × 5 × 349
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√1,005,120 = [1002; (1, 1, 3, 1, 9, 1, 2, 1, 1, 2, 1, 7, 1, 1, 2, 222, 2, 1, 1, 7, 1, 2, 1, 1, …)]
Period length 32 — the block in parentheses repeats forever.
Representations
- In words
- one million five thousand one hundred twenty
- Ordinal
- 1005120th
- Binary
- 11110101011001000000
- Octal
- 3653100
- Hexadecimal
- 0xF5640
- Base64
- D1ZA
- One's complement
- 4,293,962,175 (32-bit)
- Scientific notation
- 1.00512 × 10⁶
- As a duration
- 1,005,120 s = 11 days, 15 hours, 12 minutes
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒁹𒁹 ·
- Egyptian hieroglyphic
- 𓁨𓆼𓆼𓆼𓆼𓆼𓍢𓎆𓎆
- Chinese
- 一百萬五千一百二十
- Chinese (financial)
- 壹佰萬伍仟壹佰貳拾
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1005120, here are decompositions:
- 13 + 1005107 = 1005120
- 19 + 1005101 = 1005120
- 41 + 1005079 = 1005120
- 47 + 1005073 = 1005120
- 71 + 1005049 = 1005120
- 79 + 1005041 = 1005120
- 101 + 1005019 = 1005120
- 107 + 1005013 = 1005120
Showing the first eight; more decompositions exist.
As an unsigned 32-bit integer, this is the IPv4 address 0.15.86.64.
- Address
- 0.15.86.64
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.15.86.64
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 1,005,120 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°.