Live analysis

1,001,806

1,001,806 is a composite number, even.

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.).

1,001,806 (one million one thousand eight hundred six) is an even 7-digit number. It is a composite number with 16 divisors, and factors as 2 × 13 × 53 × 727. Written other ways, in hexadecimal, 0xF494E.

Arithmetic Number Cube-Free Deficient Number Flippable Odious Number Pernicious Number Self Number Squarefree

Interestingness

★ ★ ★ ☆ ☆

5 notable facts · grade C

1,001,794 1,001,795 1,001,796 1,001,797 1,001,798 1,001,799 1,001,800 1,001,801 1,001,802 1,001,803 1,001,804 1,001,805 1,001,806 1,001,807 1,001,808 1,001,809 1,001,810 1,001,811 1,001,812 1,001,813 1,001,814 1,001,815 1,001,816 1,001,817 1,001,818

less more

Properties

Parity: Even
Digit count: 7
Digit sum: 16
Digit product: 0
Digital root: 7
Palindrome: No
Bit width: 20 bits
Reversed: 6,081,001
Flips to (rotate 180°): 9,081,001
Square (n²): 1,003,615,261,636
Cube (n³): 1,005,427,790,798,514,616
Divisor count: 16
σ(n) — sum of divisors: 1,651,104
φ(n) — Euler's totient: 453,024
Sum of prime factors: 795

Primality

Prime factorization: 2 × 13 × 53 × 727

Nearest primes: 1,001,801 (−5) · 1,001,807 (+1)

Divisors & multiples

All divisors (16)

1 · 2 · 13 · 26 · 53 · 106 · 689 · 727 · 1378 · 1454 · 9451 · 18902 · 38531 · 77062 · 500903 (half) · 1001806

Aliquot sum (sum of proper divisors): 649,298

Factor pairs (a × b = 1,001,806)

1 × 1001806

2 × 500903

13 × 77062

26 × 38531

53 × 18902

106 × 9451

689 × 1454

727 × 1378

First multiples

1,001,806 · 2,003,612 (double) · 3,005,418 · 4,007,224 · 5,009,030 · 6,010,836 · 7,012,642 · 8,014,448 · 9,016,254 · 10,018,060

Sums & aliquot sequence

As consecutive integers: 250,450 + 250,451 + 250,452 + 250,453 77,056 + 77,057 + … + 77,068 19,240 + 19,241 + … + 19,291 18,876 + 18,877 + … + 18,928

Aliquot sequence: 1,001,806 → 649,298 → 477,250 → 466,238 → 239,650 → 206,192 → 260,296 → 227,774 → 119,674 → 63,386 → 34,138 → 21,860 → 24,088 → 21,092 → 15,826 → 8,618 → 4,822 — unresolved within range

Continued fraction of √n

√1,001,806 = [1000; (1, 9, 3, 1, 3, 8, 1, 1, 1, 2, 2, 2, 1, 1, 1, 8, 3, 1, 3, 9, 1, 2000)]

Period length 22 — the block in parentheses repeats forever.

Representations

In words: one million one thousand eight hundred six
Ordinal: 1001806th
Binary: 11110100100101001110
Octal: 3644516
Hexadecimal: 0xF494E
Base64: D0lO
One's complement: 4,293,965,489 (32-bit)
Scientific notation: 1.001806 × 10⁶
As a duration: 1,001,806 s = 11 days, 14 hours, 16 minutes, 46 seconds

In other bases

ternary (3) 1212220012221

quaternary (4) 3310211032

quinary (5) 224024211

senary (6) 33245554

septenary (7) 11341501

nonary (9) 1786187

undecimal (11) 624743

duodecimal (12) 4038ba

tridecimal (13) 290cb0

tetradecimal (14) 1c1138

pentadecimal (15) 14bc71

As an angle

1,001,806° = 2,782 × 360° + 286°

286° ≈ 4.992 rad

Compass bearing: WNW (west-northwest)

Why does a circle have 360 degrees? →

Historical numeral systems

Babylonian (base 60): 𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic: 𓁨𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓏺𓏺𓏺𓏺𓏺𓏺
Chinese: 一百萬一千八百零六
Chinese (financial): 壹佰萬壹仟捌佰零陸

In other modern scripts

Eastern Arabic ١٠٠١٨٠٦ Devanagari १००१८०६ Bengali ১০০১৮০৬ Tamil ௧௦௦௧௮௦௬ Thai ๑๐๐๑๘๐๖ Tibetan ༡༠༠༡༨༠༦ Khmer ១០០១៨០៦ Lao ໑໐໐໑໘໐໖ Burmese ၁၀၀၁၈၀၆

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1001806, here are decompositions:

5 + 1001801 = 1001806
23 + 1001783 = 1001806
83 + 1001723 = 1001806
137 + 1001669 = 1001806
167 + 1001639 = 1001806
257 + 1001549 = 1001806
347 + 1001459 = 1001806
359 + 1001447 = 1001806

Showing the first eight; more decompositions exist.

Hex color

#0F494E

RGB(15, 73, 78)

IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.73.78.

Address: 0.15.73.78
Class: reserved
IPv4-mapped IPv6: ::ffff:0.15.73.78

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 1,001,806 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 US1,001,806 on Google Patents ↗ Look up on USPTO ↗