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1,000,999

1,000,999 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.).

1,000,999 (one million nine hundred ninety-nine) is an odd 7-digit number. It is a prime number — divisible only by 1 and itself. Written other ways, in hexadecimal, 0xF4627.

Arithmetic Number Chen Prime Cousin Prime Cube-Free Deficient Number Flippable Odious Number Pernicious Number Prime Squarefree

Interestingness

Properties

Parity
Odd
Digit count
7
Digit sum
28
Digit product
0
Digital root
1
Palindrome
No
Bit width
20 bits
Reversed
9,990,001
Flips to (rotate 180°)
6,660,001
Square (n²)
1,001,998,998,001
Cube (n³)
1,002,999,995,000,002,999
Divisor count
2
σ(n) — sum of divisors
1,001,000
φ(n) — Euler's totient
1,000,998

Primality

1,000,999 is prime. It has exactly two divisors: 1 and itself.

Divisors & multiples

All divisors (2)
1 · 1000999
Aliquot sum (sum of proper divisors): 1
Factor pairs (a × b = 1,000,999)
1 × 1000999
First multiples
1,000,999 · 2,001,998 (double) · 3,002,997 · 4,003,996 · 5,004,995 · 6,005,994 · 7,006,993 · 8,007,992 · 9,008,991 · 10,009,990

Sums & aliquot sequence

As consecutive integers: 500,499 + 500,500

Continued fraction of √n

√1,000,999 = [1000; (2, 399, 1, 2, 3, 79, 1, 2, 1, 5, 2, 15, 1, 1, 4, 1, 2, 2, 3, 2, 1, 10, 16, 5, …)]

Representations

In words
one million nine hundred ninety-nine
Ordinal
1000999th
Binary
11110100011000100111
Octal
3643047
Hexadecimal
0xF4627
Base64
D0Yn
One's complement
4,293,966,296 (32-bit)
Scientific notation
1.000999 × 10⁶
As a duration
1,000,999 s = 11 days, 14 hours, 3 minutes, 19 seconds
In other bases
ternary (3) 1212212010001
quaternary (4) 3310120213
quinary (5) 224012444
senary (6) 33242131
septenary (7) 11336236
nonary (9) 1785101
undecimal (11) 62407a
duodecimal (12) 403347
tridecimal (13) 29080c
tetradecimal (14) 1c0b1d
pentadecimal (15) 14b8d4

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒁹𒁹𒁹 𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic
𓁨𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
Chinese
一百萬零九百九十九
Chinese (financial)
壹佰萬零玖佰玖拾玖
In other modern scripts
Eastern Arabic ١٠٠٠٩٩٩ Devanagari १०००९९९ Bengali ১০০০৯৯৯ Tamil ௧௦௦௦௯௯௯ Thai ๑๐๐๐๙๙๙ Tibetan ༡༠༠༠༩༩༩ Khmer ១០០០៩៩៩ Lao ໑໐໐໐໙໙໙ Burmese ၁၀၀၀၉၉၉

Also seen as

Prime neighborhood

Adjacent primes:

Pair status: cousin with 1001003.

Hex color
#0F4627
RGB(15, 70, 39)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.70.39.

Address
0.15.70.39
Class
reserved
IPv4-mapped IPv6
::ffff:0.15.70.39

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 1,000,999 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.