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1,009,980

1,009,980 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.).

1,009,980 (one million nine thousand nine hundred eighty) is an even 7-digit number. It is a composite number with 72 divisors, and factors as 2² × 3² × 5 × 31 × 181. Its proper divisors sum to 2,169,924, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0xF693C.

Abundant Number Cube-Free Evil Number Flippable Gapful Number Practical Number Weird Number

Interestingness

Properties

Parity
Even
Digit count
7
Digit sum
27
Digit product
0
Digital root
9
Palindrome
No
Bit width
20 bits
Reversed
899,001
Flips to (rotate 180°)
866,001
Square (n²)
1,020,059,600,400
Cube (n³)
1,030,239,795,211,992,000
Divisor count
72
σ(n) — sum of divisors
3,179,904
φ(n) — Euler's totient
259,200
Sum of prime factors
227

Primality

Prime factorization: 2 2 × 3 2 × 5 × 31 × 181

Nearest primes: 1,009,963 (−17) · 1,009,991 (+11)

Divisors & multiples

All divisors (72)
1 · 2 · 3 · 4 · 5 · 6 · 9 · 10 · 12 · 15 · 18 · 20 · 30 · 31 · 36 · 45 · 60 · 62 · 90 · 93 · 124 · 155 · 180 · 181 · 186 · 279 · 310 · 362 · 372 · 465 · 543 · 558 · 620 · 724 · 905 · 930 · 1086 · 1116 · 1395 · 1629 · 1810 · 1860 · 2172 · 2715 · 2790 · 3258 · 3620 · 5430 · 5580 · 5611 · 6516 · 8145 · 10860 · 11222 · 16290 · 16833 · 22444 · 28055 · 32580 · 33666 · 50499 · 56110 · 67332 · 84165 · 100998 · 112220 · 168330 · 201996 · 252495 · 336660 · 504990 (half) · 1009980
Aliquot sum (sum of proper divisors): 2,169,924
Factor pairs (a × b = 1,009,980)
1 × 1009980
2 × 504990
3 × 336660
4 × 252495
5 × 201996
6 × 168330
9 × 112220
10 × 100998
12 × 84165
15 × 67332
18 × 56110
20 × 50499
30 × 33666
31 × 32580
36 × 28055
45 × 22444
60 × 16833
62 × 16290
90 × 11222
93 × 10860
124 × 8145
155 × 6516
180 × 5611
181 × 5580
186 × 5430
279 × 3620
310 × 3258
362 × 2790
372 × 2715
465 × 2172
543 × 1860
558 × 1810
620 × 1629
724 × 1395
905 × 1116
930 × 1086
First multiples
1,009,980 · 2,019,960 (double) · 3,029,940 · 4,039,920 · 5,049,900 · 6,059,880 · 7,069,860 · 8,079,840 · 9,089,820 · 10,099,800

Sums & aliquot sequence

As consecutive integers: 336,659 + 336,660 + 336,661 201,994 + 201,995 + 201,996 + 201,997 + 201,998 126,244 + 126,245 + … + 126,251 112,216 + 112,217 + … + 112,224
Aliquot sequence: 1,009,980 2,169,924 2,923,164 4,466,036 3,809,392 3,752,624 3,518,116 4,344,284 4,344,340 8,525,804 8,830,696 10,367,384 9,742,216 10,345,784 9,287,536 8,707,096 7,618,724 — unresolved within range

Continued fraction of √n

√1,009,980 = [1004; (1, 43, 1, 1, 1, 222, 1, 1, 1, 43, 1, 2008)]

Period length 12 — the block in parentheses repeats forever.

Representations

In words
one million nine thousand nine hundred eighty
Ordinal
1009980th
Binary
11110110100100111100
Octal
3664474
Hexadecimal
0xF693C
Base64
D2k8
One's complement
4,293,957,315 (32-bit)
Scientific notation
1.00998 × 10⁶
As a duration
1,009,980 s = 11 days, 16 hours, 33 minutes
In other bases
ternary (3) 1220022102200
quaternary (4) 3312210330
quinary (5) 224304410
senary (6) 33351500
septenary (7) 11404356
nonary (9) 1808380
undecimal (11) 62a8a4
duodecimal (12) 408590
tridecimal (13) 29492a
tetradecimal (14) 1c40d6
pentadecimal (15) 14e3c0

As an angle

1,009,980° = 2,805 × 360° + 180°
180° ≈ 3.142 rad
Compass bearing: S (south)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋 𒌋𒌋𒌋𒁹𒁹𒁹 ·
Egyptian hieroglyphic
𓁨𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆
Chinese
一百萬九千九百八十
Chinese (financial)
壹佰萬玖仟玖佰捌拾
In other modern scripts
Eastern Arabic ١٠٠٩٩٨٠ Devanagari १००९९८० Bengali ১০০৯৯৮০ Tamil ௧௦௦௯௯௮௦ Thai ๑๐๐๙๙๘๐ Tibetan ༡༠༠༩༩༨༠ Khmer ១០០៩៩៨០ Lao ໑໐໐໙໙໘໐ Burmese ၁၀၀၉၉၈၀

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1009980, here are decompositions:

  • 17 + 1009963 = 1009980
  • 29 + 1009951 = 1009980
  • 43 + 1009937 = 1009980
  • 53 + 1009927 = 1009980
  • 71 + 1009909 = 1009980
  • 79 + 1009901 = 1009980
  • 107 + 1009873 = 1009980
  • 137 + 1009843 = 1009980

Showing the first eight; more decompositions exist.

Hex color
#0F693C
RGB(15, 105, 60)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.105.60.

Address
0.15.105.60
Class
reserved
IPv4-mapped IPv6
::ffff:0.15.105.60

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 1,009,980 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°.