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988,688

988,688 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.).

988,688 (nine hundred eighty-eight thousand six hundred eighty-eight) is an even 6-digit number. It is a composite number with 20 divisors, and factors as 2⁴ × 61 × 1,013. Written other ways, in hexadecimal, 0xF1610.

Deficient Number Evil Number Flippable

Interestingness

Properties

Parity
Even
Digit count
6
Digit sum
47
Digit product
221,184
Digital root
2
Palindrome
No
Bit width
20 bits
Reversed
886,889
Flips to (rotate 180°)
889,886
Square (n²)
977,503,961,344
Cube (n³)
966,446,436,533,276,672
Divisor count
20
σ(n) — sum of divisors
1,948,908
φ(n) — Euler's totient
485,760
Sum of prime factors
1,082

Primality

Prime factorization: 2 4 × 61 × 1013

Nearest primes: 988,681 (−7) · 988,693 (+5)

Divisors & multiples

All divisors (20)
1 · 2 · 4 · 8 · 16 · 61 · 122 · 244 · 488 · 976 · 1013 · 2026 · 4052 · 8104 · 16208 · 61793 · 123586 · 247172 · 494344 (half) · 988688
Aliquot sum (sum of proper divisors): 960,220
Factor pairs (a × b = 988,688)
1 × 988688
2 × 494344
4 × 247172
8 × 123586
16 × 61793
61 × 16208
122 × 8104
244 × 4052
488 × 2026
976 × 1013
First multiples
988,688 · 1,977,376 (double) · 2,966,064 · 3,954,752 · 4,943,440 · 5,932,128 · 6,920,816 · 7,909,504 · 8,898,192 · 9,886,880

Sums & aliquot sequence

As a sum of two squares: 68² + 992² = 112² + 988²
As consecutive integers: 30,881 + 30,882 + … + 30,912 16,178 + 16,179 + … + 16,238 470 + 471 + … + 1,482
Aliquot sequence: 988,688 960,220 1,107,188 883,024 842,436 1,591,996 1,592,052 3,042,060 6,693,876 12,909,708 24,385,732 25,888,268 26,947,732 28,097,132 28,097,188 29,246,812 29,246,868 — unresolved within range

Continued fraction of √n

√988,688 = [994; (3, 20, 5, 1, 15, 1, 7, 9, 26, 17, 1, 1, 3, 1, 1, 1, 3, 7, 2, 37, 1, 3, 2, 5, …)]

Representations

In words
nine hundred eighty-eight thousand six hundred eighty-eight
Ordinal
988688th
Binary
11110001011000010000
Octal
3613020
Hexadecimal
0xF1610
Base64
DxYQ
One's complement
4,293,978,607 (32-bit)
Scientific notation
9.88688 × 10⁵
As a duration
988,688 s = 11 days, 10 hours, 38 minutes, 8 seconds
In other bases
ternary (3) 1212020020002
quaternary (4) 3301120100
quinary (5) 223114223
senary (6) 33105132
septenary (7) 11255321
nonary (9) 1766202
undecimal (11) 6158a8
duodecimal (12) 3b81a8
tridecimal (13) 28802c
tetradecimal (14) 1ba448
pentadecimal (15) 147e28

As an angle

988,688° = 2,746 × 360° + 128°
128° ≈ 2.234 rad
Compass bearing: SE (southeast)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic
𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
Greek (Milesian)
͵ϡπηχπηʹ
Chinese
九十八萬八千六百八十八
Chinese (financial)
玖拾捌萬捌仟陸佰捌拾捌
In other modern scripts
Eastern Arabic ٩٨٨٦٨٨ Devanagari ९८८६८८ Bengali ৯৮৮৬৮৮ Tamil ௯௮௮௬௮௮ Thai ๙๘๘๖๘๘ Tibetan ༩༨༨༦༨༨ Khmer ៩៨៨៦៨៨ Lao ໙໘໘໖໘໘ Burmese ၉၈၈၆၈၈

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 988688, here are decompositions:

  • 7 + 988681 = 988688
  • 37 + 988651 = 988688
  • 97 + 988591 = 988688
  • 109 + 988579 = 988688
  • 139 + 988549 = 988688
  • 199 + 988489 = 988688
  • 229 + 988459 = 988688
  • 271 + 988417 = 988688

Showing the first eight; more decompositions exist.

Hex color
#0F1610
RGB(15, 22, 16)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.22.16.

Address
0.15.22.16
Class
reserved
IPv4-mapped IPv6
::ffff:0.15.22.16

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 988,688 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°.