Live analysis

1,001,808

1,001,808 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.).

1,001,808 (one million one thousand eight hundred eight) is an even 7-digit number. It is a composite number with 50 divisors, and factors as 2⁴ × 3⁴ × 773. Its proper divisors sum to 1,901,466, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0xF4950.

Abundant Number Flippable Gapful Number Happy Number Harshad / Niven Odious Number Practical Number Semiperfect Number

Interestingness

★ ★ ★ ★ ☆

6 notable facts · grade B

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 1,001,819 1,001,820

less more

Properties

Parity: Even
Digit count: 7
Digit sum: 18
Digit product: 0
Digital root: 9
Palindrome: No
Bit width: 20 bits
Reversed: 8,081,001
Flips to (rotate 180°): 8,081,001
Square (n²): 1,003,619,268,864
Cube (n³): 1,005,433,812,502,106,112
Divisor count: 50
σ(n) — sum of divisors: 2,903,274
φ(n) — Euler's totient: 333,504
Sum of prime factors: 793

Primality

Prime factorization: 2 ⁴ × 3 ⁴ × 773

Nearest primes: 1,001,807 (−1) · 1,001,809 (+1)

Divisors & multiples

All divisors (50)

1 · 2 · 3 · 4 · 6 · 8 · 9 · 12 · 16 · 18 · 24 · 27 · 36 · 48 · 54 · 72 · 81 · 108 · 144 · 162 · 216 · 324 · 432 · 648 · 773 · 1296 · 1546 · 2319 · 3092 · 4638 · 6184 · 6957 · 9276 · 12368 · 13914 · 18552 · 20871 · 27828 · 37104 · 41742 · 55656 · 62613 · 83484 · 111312 · 125226 · 166968 · 250452 · 333936 · 500904 (half) · 1001808

Aliquot sum (sum of proper divisors): 1,901,466

Factor pairs (a × b = 1,001,808)

1 × 1001808

2 × 500904

3 × 333936

4 × 250452

6 × 166968

8 × 125226

9 × 111312

12 × 83484

16 × 62613

18 × 55656

24 × 41742

27 × 37104

36 × 27828

48 × 20871

54 × 18552

72 × 13914

81 × 12368

108 × 9276

144 × 6957

162 × 6184

216 × 4638

324 × 3092

432 × 2319

648 × 1546

773 × 1296

First multiples

1,001,808 · 2,003,616 (double) · 3,005,424 · 4,007,232 · 5,009,040 · 6,010,848 · 7,012,656 · 8,014,464 · 9,016,272 · 10,018,080

Sums & aliquot sequence

As a sum of two squares: 612² + 792²

As consecutive integers: 333,935 + 333,936 + 333,937 111,308 + 111,309 + … + 111,316 37,091 + 37,092 + … + 37,117 31,291 + 31,292 + … + 31,322

Aliquot sequence: 1,001,808 → 1,901,466 → 2,807,238 → 3,690,042 → 3,718,758 → 3,718,770 → 6,234,510 → 8,944,242 → 8,986,830 → 12,661,554 → 12,661,566 → 14,151,378 → 15,816,462 → 15,816,474 → 20,687,526 → 24,135,486 → 24,135,498 — unresolved within range

Continued fraction of √n

√1,001,808 = [1000; (1, 9, 2, 1, 2, 6, 45, 2, 1, 19, 1, 30, 3, 16, 4, 1, 2, 24, 2, 1, 4, 16, 3, 30, …)]

Period length 36 — the block in parentheses repeats forever.

Representations

In words: one million one thousand eight hundred eight
Ordinal: 1001808th
Binary: 11110100100101010000
Octal: 3644520
Hexadecimal: 0xF4950
Base64: D0lQ
One's complement: 4,293,965,487 (32-bit)
Scientific notation: 1.001808 × 10⁶
As a duration: 1,001,808 s = 11 days, 14 hours, 16 minutes, 48 seconds

In other bases

ternary (3) 1212220020000

quaternary (4) 3310211100

quinary (5) 224024213

senary (6) 33250000

septenary (7) 11341503

nonary (9) 1786200

undecimal (11) 624745

duodecimal (12) 403900

tridecimal (13) 290cb2

tetradecimal (14) 1c113a

pentadecimal (15) 14bc73

As an angle

1,001,808° = 2,782 × 360° + 288°

288° ≈ 5.027 rad

Compass bearing: WNW (west-northwest)

Why does a circle have 360 degrees? →

Historical numeral systems

Babylonian (base 60): 𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic: 𓁨𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
Chinese: 一百萬一千八百零八
Chinese (financial): 壹佰萬壹仟捌佰零捌

In other modern scripts

Eastern Arabic ١٠٠١٨٠٨ Devanagari १००१८०८ Bengali ১০০১৮০৮ Tamil ௧௦௦௧௮௦௮ Thai ๑๐๐๑๘๐๘ Tibetan ༡༠༠༡༨༠༨ Khmer ១០០១៨០៨ Lao ໑໐໐໑໘໐໘ Burmese ၁၀၀၁၈၀၈

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1001808, here are decompositions:

7 + 1001801 = 1001808
11 + 1001797 = 1001808
139 + 1001669 = 1001808
149 + 1001659 = 1001808
179 + 1001629 = 1001808
239 + 1001569 = 1001808
257 + 1001551 = 1001808
277 + 1001531 = 1001808

Showing the first eight; more decompositions exist.

Hex color

#0F4950

RGB(15, 73, 80)

IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.73.80.

Address: 0.15.73.80
Class: reserved
IPv4-mapped IPv6: ::ffff:0.15.73.80

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 1,001,808 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 US1,001,808 on Google Patents ↗ Look up on USPTO ↗