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1,000,866

1,000,866 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.).

1,000,866 (one million eight hundred sixty-six) is an even 7-digit number. It is a composite number with 16 divisors, and factors as 2 × 3 × 31 × 5,381. Its proper divisors sum to 1,065,822, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0xF45A2.

Abundant Number Arithmetic Number Cube-Free Evil Number Flippable Semiperfect Number Squarefree

Interestingness

Properties

Parity
Even
Digit count
7
Digit sum
21
Digit product
0
Digital root
3
Palindrome
No
Bit width
20 bits
Reversed
6,680,001
Flips to (rotate 180°)
9,980,001
Square (n²)
1,001,732,749,956
Cube (n³)
1,002,600,250,517,461,896
Divisor count
16
σ(n) — sum of divisors
2,066,688
φ(n) — Euler's totient
322,800
Sum of prime factors
5,417

Primality

Prime factorization: 2 × 3 × 31 × 5381

Nearest primes: 1,000,861 (−5) · 1,000,889 (+23)

Divisors & multiples

All divisors (16)
1 · 2 · 3 · 6 · 31 · 62 · 93 · 186 · 5381 · 10762 · 16143 · 32286 · 166811 · 333622 · 500433 (half) · 1000866
Aliquot sum (sum of proper divisors): 1,065,822
Factor pairs (a × b = 1,000,866)
1 × 1000866
2 × 500433
3 × 333622
6 × 166811
31 × 32286
62 × 16143
93 × 10762
186 × 5381
First multiples
1,000,866 · 2,001,732 (double) · 3,002,598 · 4,003,464 · 5,004,330 · 6,005,196 · 7,006,062 · 8,006,928 · 9,007,794 · 10,008,660

Sums & aliquot sequence

As consecutive integers: 333,621 + 333,622 + 333,623 250,215 + 250,216 + 250,217 + 250,218 83,400 + 83,401 + … + 83,411 32,271 + 32,272 + … + 32,301
Aliquot sequence: 1,000,866 1,065,822 1,123,890 1,573,518 1,573,530 2,850,150 4,218,594 4,264,638 5,654,082 7,404,990 10,367,058 11,962,158 14,600,658 14,600,670 25,751,586 33,276,894 42,784,674 — unresolved within range

Continued fraction of √n

√1,000,866 = [1000; (2, 3, 4, 2, 2, 1, 2, 2, 17, 1, 3, 3, 3, 3, 1, 6, 66, 1, 1, 4, 1, 2, 1, 3, …)]

Representations

In words
one million eight hundred sixty-six
Ordinal
1000866th
Binary
11110100010110100010
Octal
3642642
Hexadecimal
0xF45A2
Base64
D0Wi
One's complement
4,293,966,429 (32-bit)
Scientific notation
1.000866 × 10⁶
As a duration
1,000,866 s = 11 days, 14 hours, 1 minute, 6 seconds
In other bases
ternary (3) 1212211221010
quaternary (4) 3310112202
quinary (5) 224011431
senary (6) 33241350
septenary (7) 11335656
nonary (9) 1784833
undecimal (11) 623a69
duodecimal (12) 403256
tridecimal (13) 290739
tetradecimal (14) 1c0a66
pentadecimal (15) 14b846

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒁹 𒁹𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic
𓁨𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺
Chinese
一百萬零八百六十六
Chinese (financial)
壹佰萬零捌佰陸拾陸
In other modern scripts
Eastern Arabic ١٠٠٠٨٦٦ Devanagari १०००८६६ Bengali ১০০০৮৬৬ Tamil ௧௦௦௦௮௬௬ Thai ๑๐๐๐๘๖๖ Tibetan ༡༠༠༠༨༦༦ Khmer ១០០០៨៦៦ Lao ໑໐໐໐໘໖໖ Burmese ၁၀၀၀၈၆၆

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1000866, here are decompositions:

  • 5 + 1000861 = 1000866
  • 7 + 1000859 = 1000866
  • 17 + 1000849 = 1000866
  • 19 + 1000847 = 1000866
  • 37 + 1000829 = 1000866
  • 73 + 1000793 = 1000866
  • 89 + 1000777 = 1000866
  • 103 + 1000763 = 1000866

Showing the first eight; more decompositions exist.

Hex color
#0F45A2
RGB(15, 69, 162)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.69.162.

Address
0.15.69.162
Class
reserved
IPv4-mapped IPv6
::ffff:0.15.69.162

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 1,000,866 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°.