Live analysis

1,002,809

1,002,809 is a prime, odd.

This number doesn't have a permanent NumberWiki page yet — what you see below is computed live. Pages get added to the permanent index when they're notable (years, primes, curated, etc.).

1,002,809 (one million two thousand eight hundred nine) is an odd 7-digit number. It is a prime number — divisible only by 1 and itself. Written other ways, in hexadecimal, 0xF4D39.

Arithmetic Number Chen Prime Cube-Free Deficient Number Evil Number Prime Pythagorean Prime Squarefree

Interestingness

★ ★ ★ ★ ☆

6 notable facts · grade B

1,002,797 1,002,798 1,002,799 1,002,800 1,002,801 1,002,802 1,002,803 1,002,804 1,002,805 1,002,806 1,002,807 1,002,808 1,002,809 1,002,810 1,002,811 1,002,812 1,002,813 1,002,814 1,002,815 1,002,816 1,002,817 1,002,818 1,002,819 1,002,820 1,002,821

less more

Properties

Parity: Odd
Digit count: 7
Digit sum: 20
Digit product: 0
Digital root: 2
Palindrome: No
Bit width: 20 bits
Reversed: 9,082,001
Square (n²): 1,005,625,890,481
Cube (n³): 1,008,450,693,607,361,129
Divisor count: 2
σ(n) — sum of divisors: 1,002,810
φ(n) — Euler's totient: 1,002,808

Primality

1,002,809 is prime. It has exactly two divisors: 1 and itself.

Divisors & multiples

All divisors (2)

1 · 1002809

Aliquot sum (sum of proper divisors): 1

Factor pairs (a × b = 1,002,809)

1 × 1002809

First multiples

1,002,809 · 2,005,618 (double) · 3,008,427 · 4,011,236 · 5,014,045 · 6,016,854 · 7,019,663 · 8,022,472 · 9,025,281 · 10,028,090

Sums & aliquot sequence

As a sum of two squares: 53² + 1,000²

As consecutive integers: 501,404 + 501,405

Continued fraction of √n

√1,002,809 = [1001; (2, 2, 10, 1, 47, 1, 14, 1, 3, 1, 3, 2, 4, 9, 11, 12, 2, 2, 1, 18, 1, 2, 1, 2, …)]

Representations

In words: one million two thousand eight hundred nine
Ordinal: 1002809th
Binary: 11110100110100111001
Octal: 3646471
Hexadecimal: 0xF4D39
Base64: D005
One's complement: 4,293,964,486 (32-bit)
Scientific notation: 1.002809 × 10⁶
As a duration: 1,002,809 s = 11 days, 14 hours, 33 minutes, 29 seconds

In other bases

ternary (3) 1212221121002

quaternary (4) 3310310321

quinary (5) 224042214

senary (6) 33254345

septenary (7) 11344433

nonary (9) 1787532

undecimal (11) 625475

duodecimal (12) 4043b5

tridecimal (13) 2915a2

tetradecimal (14) 1c1653

pentadecimal (15) 14c1de

As an angle

1,002,809° = 2,785 × 360° + 209°

209° ≈ 3.648 rad

Compass bearing: SSW (south-southwest)

Why does a circle have 360 degrees? →

Historical numeral systems

Babylonian (base 60): 𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic: 𓁨𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
Chinese: 一百萬二千八百零九
Chinese (financial): 壹佰萬貳仟捌佰零玖

In other modern scripts

Eastern Arabic ١٠٠٢٨٠٩ Devanagari १००२८०९ Bengali ১০০২৮০৯ Tamil ௧௦௦௨௮௦௯ Thai ๑๐๐๒๘๐๙ Tibetan ༡༠༠༢༨༠༩ Khmer ១០០២៨០៩ Lao ໑໐໐໒໘໐໙ Burmese ၁၀၀၂၈၀၉

Also seen as

Prime neighborhood

Adjacent primes:

Previous prime: 1,002,797 (gap of 12)
Next prime: 1,002,817 (gap of 8)

Hex color

#0F4D39

RGB(15, 77, 57)

IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.77.57.

Address: 0.15.77.57
Class: reserved
IPv4-mapped IPv6: ::ffff:0.15.77.57

Unspecified address (0.0.0.0/8) — "this network" placeholder.

Possible US patent number

This number falls in the range of US utility patent numbers. If it's a patent, it would be issued as US 1,002,809 and was likely granted around 1911.

Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.

Look up US1,002,809 on Google Patents ↗ Look up on USPTO ↗