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1,009,880

1,009,880 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.).

1,009,880 (one million nine thousand eight hundred eighty) is an even 7-digit number. It is a composite number with 16 divisors, and factors as 2³ × 5 × 25,247. Its proper divisors sum to 1,262,440, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0xF68D8.

Abundant Number Arithmetic Number Flippable Gapful Number Odious Number Pernicious Number Semiperfect Number

Interestingness

Properties

Parity
Even
Digit count
7
Digit sum
26
Digit product
0
Digital root
8
Palindrome
No
Bit width
20 bits
Reversed
889,001
Flips to (rotate 180°)
886,001
Square (n²)
1,019,857,614,400
Cube (n³)
1,029,933,807,630,272,000
Divisor count
16
σ(n) — sum of divisors
2,272,320
φ(n) — Euler's totient
403,936
Sum of prime factors
25,258

Primality

Prime factorization: 2 3 × 5 × 25247

Nearest primes: 1,009,873 (−7) · 1,009,901 (+21)

Divisors & multiples

All divisors (16)
1 · 2 · 4 · 5 · 8 · 10 · 20 · 40 · 25247 · 50494 · 100988 · 126235 · 201976 · 252470 · 504940 (half) · 1009880
Aliquot sum (sum of proper divisors): 1,262,440
Factor pairs (a × b = 1,009,880)
1 × 1009880
2 × 504940
4 × 252470
5 × 201976
8 × 126235
10 × 100988
20 × 50494
40 × 25247
First multiples
1,009,880 · 2,019,760 (double) · 3,029,640 · 4,039,520 · 5,049,400 · 6,059,280 · 7,069,160 · 8,079,040 · 9,088,920 · 10,098,800

Sums & aliquot sequence

As consecutive integers: 201,974 + 201,975 + 201,976 + 201,977 + 201,978 63,110 + 63,111 + … + 63,125 12,584 + 12,585 + … + 12,663
Aliquot sequence: 1,009,880 1,262,440 1,658,240 2,307,520 3,188,024 3,643,576 3,709,064 3,245,446 1,639,034 824,986 412,496 539,824 506,116 447,816 698,424 1,047,696 2,035,440 — unresolved within range

Continued fraction of √n

√1,009,880 = [1004; (1, 12, 1, 6, 4, 2, 6, 1, 2, 1, 2, 1, 2, 2, 1, 44, 1, 40, 25, 2, 2, 1, 1, 48, …)]

Representations

In words
one million nine thousand eight hundred eighty
Ordinal
1009880th
Binary
11110110100011011000
Octal
3664330
Hexadecimal
0xF68D8
Base64
D2jY
One's complement
4,293,957,415 (32-bit)
Scientific notation
1.00988 × 10⁶
As a duration
1,009,880 s = 11 days, 16 hours, 31 minutes, 20 seconds
In other bases
ternary (3) 1220022021222
quaternary (4) 3312203120
quinary (5) 224304010
senary (6) 33351212
septenary (7) 11404154
nonary (9) 1808258
undecimal (11) 62a813
duodecimal (12) 408508
tridecimal (13) 294881
tetradecimal (14) 1c4064
pentadecimal (15) 14e355

As an angle

1,009,880° = 2,805 × 360° + 80°
80° ≈ 1.396 rad
Compass bearing: E (east)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋 𒌋𒌋𒌋𒁹 𒌋𒌋
Egyptian hieroglyphic
𓁨𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆
Chinese
一百萬九千八百八十
Chinese (financial)
壹佰萬玖仟捌佰捌拾
In other modern scripts
Eastern Arabic ١٠٠٩٨٨٠ Devanagari १००९८८० Bengali ১০০৯৮৮০ Tamil ௧௦௦௯௮௮௦ Thai ๑๐๐๙๘๘๐ Tibetan ༡༠༠༩༨༨༠ Khmer ១០០៩៨៨០ Lao ໑໐໐໙໘໘໐ Burmese ၁၀၀၉၈၈၀

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1009880, here are decompositions:

  • 7 + 1009873 = 1009880
  • 37 + 1009843 = 1009880
  • 43 + 1009837 = 1009880
  • 61 + 1009819 = 1009880
  • 73 + 1009807 = 1009880
  • 139 + 1009741 = 1009880
  • 211 + 1009669 = 1009880
  • 229 + 1009651 = 1009880

Showing the first eight; more decompositions exist.

Hex color
#0F68D8
RGB(15, 104, 216)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.104.216.

Address
0.15.104.216
Class
reserved
IPv4-mapped IPv6
::ffff:0.15.104.216

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 1,009,880 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°.