1,000,991
1,000,991 is a composite number, odd.
1,000,991 (one million nine hundred ninety-one) is an odd 7-digit number. It is a composite number with 4 divisors, and factors as 419 × 2,389. Written other ways, in hexadecimal, 0xF461F.
Interestingness
Properties
- Parity
- Odd
- Digit count
- 7
- Digit sum
- 20
- Digit product
- 0
- Digital root
- 2
- Palindrome
- No
- Bit width
- 20 bits
- Reversed
- 1,990,001
- Flips to (rotate 180°)
- 1,660,001
- Square (n²)
- 1,001,982,982,081
- Cube (n³)
- 1,002,975,947,216,242,271
- Divisor count
- 4
- σ(n) — sum of divisors
- 1,003,800
- φ(n) — Euler's totient
- 998,184
- Sum of prime factors
- 2,808
Primality
Prime factorization: 419 × 2389
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√1,000,991 = [1000; (2, 53, 1, 1, 2, 1, 1, 2, 2, 1, 23, 2, 2, 10, 1, 5, 4, 11, 3, 16, 12, 1, 5, 1, …)]
Representations
- In words
- one million nine hundred ninety-one
- Ordinal
- 1000991st
- Binary
- 11110100011000011111
- Octal
- 3643037
- Hexadecimal
- 0xF461F
- Base64
- D0Yf
- One's complement
- 4,293,966,304 (32-bit)
- Scientific notation
- 1.000991 × 10⁶
- As a duration
- 1,000,991 s = 11 days, 14 hours, 3 minutes, 11 seconds
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒁹𒁹𒁹 𒌋𒁹
- Egyptian hieroglyphic
- 𓁨𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺
- Chinese
- 一百萬零九百九十一
- Chinese (financial)
- 壹佰萬零玖佰玖拾壹
Also seen as
As an unsigned 32-bit integer, this is the IPv4 address 0.15.70.31.
- Address
- 0.15.70.31
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.15.70.31
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 1,000,991 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
- Egyptian hieroglyphic numerals — Seven hieroglyphs for every power of ten, from a single stroke to a million.