1,002,990
1,002,990 is a composite number, even.
1,002,990 (one million two thousand nine hundred ninety) is an even 7-digit number. It is a composite number with 32 divisors, and factors as 2 × 3 × 5 × 67 × 499. Its proper divisors sum to 1,445,010, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0xF4DEE.
Interestingness
Properties
- Parity
- Even
- Digit count
- 7
- Digit sum
- 21
- Digit product
- 0
- Digital root
- 3
- Palindrome
- No
- Bit width
- 20 bits
- Reversed
- 992,001
- Square (n²)
- 1,005,988,940,100
- Cube (n³)
- 1,008,996,847,030,899,000
- Divisor count
- 32
- σ(n) — sum of divisors
- 2,448,000
- φ(n) — Euler's totient
- 262,944
- Sum of prime factors
- 576
Primality
Prime factorization: 2 × 3 × 5 × 67 × 499
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√1,002,990 = [1001; (2, 40, 2, 1, 1, 1, 5, 1, 4, 2, 2, 4, 1, 1, 9, 5, 1, 4, 10, 3, 1, 1, 3, 21, …)]
Representations
- In words
- one million two thousand nine hundred ninety
- Ordinal
- 1002990th
- Binary
- 11110100110111101110
- Octal
- 3646756
- Hexadecimal
- 0xF4DEE
- Base64
- D03u
- One's complement
- 4,293,964,305 (32-bit)
- Scientific notation
- 1.00299 × 10⁶
- As a duration
- 1,002,990 s = 11 days, 14 hours, 36 minutes, 30 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋
- Egyptian hieroglyphic
- 𓁨𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆
- Chinese
- 一百萬二千九百九十
- Chinese (financial)
- 壹佰萬貳仟玖佰玖拾
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1002990, here are decompositions:
- 11 + 1002979 = 1002990
- 17 + 1002973 = 1002990
- 59 + 1002931 = 1002990
- 61 + 1002929 = 1002990
- 73 + 1002917 = 1002990
- 97 + 1002893 = 1002990
- 103 + 1002887 = 1002990
- 127 + 1002863 = 1002990
Showing the first eight; more decompositions exist.
As an unsigned 32-bit integer, this is the IPv4 address 0.15.77.238.
- Address
- 0.15.77.238
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.15.77.238
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 1,002,990 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°.