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1,000,667

1,000,667 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.).

1,000,667 (one million six hundred sixty-seven) is an odd 7-digit number. It is a prime number — divisible only by 1 and itself. Written other ways, in hexadecimal, 0xF44DB.

Arithmetic Number Chen Prime Cube-Free Deficient Number Emirp Evil Number Prime Safe Prime Squarefree Twin Prime

Interestingness

Properties

Parity
Odd
Digit count
7
Digit sum
20
Digit product
0
Digital root
2
Palindrome
No
Bit width
20 bits
Reversed
7,660,001
Square (n²)
1,001,334,444,889
Cube (n³)
1,002,002,334,963,740,963
Divisor count
2
σ(n) — sum of divisors
1,000,668
φ(n) — Euler's totient
1,000,666

Primality

1,000,667 is prime. It has exactly two divisors: 1 and itself.

Divisors & multiples

All divisors (2)
1 · 1000667
Aliquot sum (sum of proper divisors): 1
Factor pairs (a × b = 1,000,667)
1 × 1000667
First multiples
1,000,667 · 2,001,334 (double) · 3,002,001 · 4,002,668 · 5,003,335 · 6,004,002 · 7,004,669 · 8,005,336 · 9,006,003 · 10,006,670

Sums & aliquot sequence

As consecutive integers: 500,333 + 500,334

Continued fraction of √n

√1,000,667 = [1000; (2, 1, 999, 1, 2, 2000)]

Period length 6 — the block in parentheses repeats forever.

Representations

In words
one million six hundred sixty-seven
Ordinal
1000667th
Binary
11110100010011011011
Octal
3642333
Hexadecimal
0xF44DB
Base64
D0Tb
One's complement
4,293,966,628 (32-bit)
Scientific notation
1.000667 × 10⁶
As a duration
1,000,667 s = 11 days, 13 hours, 57 minutes, 47 seconds
In other bases
ternary (3) 1212211122202
quaternary (4) 3310103123
quinary (5) 224010132
senary (6) 33240415
septenary (7) 11335253
nonary (9) 1784582
undecimal (11) 6238a8
duodecimal (12) 40310b
tridecimal (13) 290615
tetradecimal (14) 1c0963
pentadecimal (15) 14b762

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic
𓁨𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺
Chinese
一百萬零六百六十七
Chinese (financial)
壹佰萬零陸佰陸拾柒
In other modern scripts
Eastern Arabic ١٠٠٠٦٦٧ Devanagari १०००६६७ Bengali ১০০০৬৬৭ Tamil ௧௦௦௦௬௬௭ Thai ๑๐๐๐๖๖๗ Tibetan ༡༠༠༠༦༦༧ Khmer ១០០០៦៦៧ Lao ໑໐໐໐໖໖໗ Burmese ၁၀၀၀၆၆၇

Also seen as

Prime neighborhood

Adjacent primes:

Pair status: twin with 1000669.

Hex color
#0F44DB
RGB(15, 68, 219)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.68.219.

Address
0.15.68.219
Class
reserved
IPv4-mapped IPv6
::ffff:0.15.68.219

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 1,000,667 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

  • Prime numbers — The building blocks of arithmetic: what primes are, why they matter, and how we find them.
  • Egyptian hieroglyphic numerals — Seven hieroglyphs for every power of ten, from a single stroke to a million.