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1,009,000

1,009,000 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.).

1,009,000 (one million nine thousand) is an even 7-digit number. It is a composite number with 32 divisors, and factors as 2³ × 5³ × 1,009. Its proper divisors sum to 1,354,400, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0xF6568.

Abundant Number Flippable Gapful Number Happy Number Harshad / Niven Odious Number Pernicious Number Practical Number Recamán's Sequence Semiperfect Number

Interestingness

Properties

Parity
Even
Digit count
7
Digit sum
10
Digit product
0
Digital root
1
Palindrome
No
Bit width
20 bits
Reversed
9,001
Flips to (rotate 180°)
6,001
Recamán's sequence
a(347,451) = 1,009,000
Square (n²)
1,018,081,000,000
Cube (n³)
1,027,243,729,000,000,000
Divisor count
32
σ(n) — sum of divisors
2,363,400
φ(n) — Euler's totient
403,200
Sum of prime factors
1,030

Primality

Prime factorization: 2 3 × 5 3 × 1009

Nearest primes: 1,008,991 (−9) · 1,009,007 (+7)

Divisors & multiples

All divisors (32)
1 · 2 · 4 · 5 · 8 · 10 · 20 · 25 · 40 · 50 · 100 · 125 · 200 · 250 · 500 · 1000 · 1009 · 2018 · 4036 · 5045 · 8072 · 10090 · 20180 · 25225 · 40360 · 50450 · 100900 · 126125 · 201800 · 252250 · 504500 (half) · 1009000
Aliquot sum (sum of proper divisors): 1,354,400
Factor pairs (a × b = 1,009,000)
1 × 1009000
2 × 504500
4 × 252250
5 × 201800
8 × 126125
10 × 100900
20 × 50450
25 × 40360
40 × 25225
50 × 20180
100 × 10090
125 × 8072
200 × 5045
250 × 4036
500 × 2018
1000 × 1009
First multiples
1,009,000 · 2,018,000 (double) · 3,027,000 · 4,036,000 · 5,045,000 · 6,054,000 · 7,063,000 · 8,072,000 · 9,081,000 · 10,090,000

Sums & aliquot sequence

As a sum of two squares: 114² + 998² = 170² + 990² = 458² + 894² = 690² + 730²
As consecutive integers: 201,798 + 201,799 + 201,800 + 201,801 + 201,802 63,055 + 63,056 + … + 63,070 40,348 + 40,349 + … + 40,372 12,573 + 12,574 + … + 12,652
Aliquot sequence: 1,009,000 1,354,400 1,953,982 976,994 579,934 289,970 238,798 182,546 180,334 157,202 81,694 40,850 40,990 32,810 30,046 15,818 10,102 — unresolved within range

Continued fraction of √n

√1,009,000 = [1004; (2, 24, 3, 3, 3, 1, 27, 1, 1, 8, 2, 2, 1, 1, 1, 1, 1, 8, 3, 4, 4, 1, 9, 1, …)]

Representations

In words
one million nine thousand
Ordinal
1009000th
Binary
11110110010101101000
Octal
3662550
Hexadecimal
0xF6568
Base64
D2Vo
One's complement
4,293,958,295 (32-bit)
Scientific notation
1.009 × 10⁶
As a duration
1,009,000 s = 11 days, 16 hours, 16 minutes, 40 seconds
In other bases
ternary (3) 1220021002101
quaternary (4) 3312111220
quinary (5) 224242000
senary (6) 33343144
septenary (7) 11401456
nonary (9) 1807071
undecimal (11) 62a093
duodecimal (12) 407ab4
tridecimal (13) 294355
tetradecimal (14) 1c39d6
pentadecimal (15) 14de6a

As an angle

1,009,000° = 2,802 × 360° + 280°
280° ≈ 4.887 rad
Compass bearing: W (west)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋 𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋
Egyptian hieroglyphic
𓁨𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼
Chinese
一百萬九千
Chinese (financial)
壹佰萬玖仟
In other modern scripts
Eastern Arabic ١٠٠٩٠٠٠ Devanagari १००९००० Bengali ১০০৯০০০ Tamil ௧௦௦௯௦௦௦ Thai ๑๐๐๙๐๐๐ Tibetan ༡༠༠༩༠༠༠ Khmer ១០០៩០០០ Lao ໑໐໐໙໐໐໐ Burmese ၁၀၀၉၀၀၀

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1009000, here are decompositions:

  • 11 + 1008989 = 1009000
  • 17 + 1008983 = 1009000
  • 53 + 1008947 = 1009000
  • 89 + 1008911 = 1009000
  • 137 + 1008863 = 1009000
  • 149 + 1008851 = 1009000
  • 191 + 1008809 = 1009000
  • 227 + 1008773 = 1009000

Showing the first eight; more decompositions exist.

Hex color
#0F6568
RGB(15, 101, 104)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.101.104.

Address
0.15.101.104
Class
reserved
IPv4-mapped IPv6
::ffff:0.15.101.104

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 1,009,000 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°.