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988,040

988,040 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.).

988,040 (nine hundred eighty-eight thousand forty) is an even 6-digit number. It is a composite number with 32 divisors, and factors as 2³ × 5 × 17 × 1,453. Its proper divisors sum to 1,367,440, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0xF1388.

Abundant Number Odious Number Practical Number Recamán's Sequence Semiperfect Number

Interestingness

Properties

Parity
Even
Digit count
6
Digit sum
29
Digit product
0
Digital root
2
Palindrome
No
Bit width
20 bits
Reversed
40,889
Recamán's sequence
a(330,559) = 988,040
Square (n²)
976,223,041,600
Cube (n³)
964,547,414,022,464,000
Divisor count
32
σ(n) — sum of divisors
2,355,480
φ(n) — Euler's totient
371,712
Sum of prime factors
1,481

Primality

Prime factorization: 2 3 × 5 × 17 × 1453

Nearest primes: 988,033 (−7) · 988,051 (+11)

Divisors & multiples

All divisors (32)
1 · 2 · 4 · 5 · 8 · 10 · 17 · 20 · 34 · 40 · 68 · 85 · 136 · 170 · 340 · 680 · 1453 · 2906 · 5812 · 7265 · 11624 · 14530 · 24701 · 29060 · 49402 · 58120 · 98804 · 123505 · 197608 · 247010 · 494020 (half) · 988040
Aliquot sum (sum of proper divisors): 1,367,440
Factor pairs (a × b = 988,040)
1 × 988040
2 × 494020
4 × 247010
5 × 197608
8 × 123505
10 × 98804
17 × 58120
20 × 49402
34 × 29060
40 × 24701
68 × 14530
85 × 11624
136 × 7265
170 × 5812
340 × 2906
680 × 1453
First multiples
988,040 · 1,976,080 (double) · 2,964,120 · 3,952,160 · 4,940,200 · 5,928,240 · 6,916,280 · 7,904,320 · 8,892,360 · 9,880,400

Sums & aliquot sequence

As a sum of two squares: 2² + 994² = 154² + 982² = 466² + 878² = 598² + 794²
As consecutive integers: 197,606 + 197,607 + 197,608 + 197,609 + 197,610 61,745 + 61,746 + … + 61,760 58,112 + 58,113 + … + 58,128 12,311 + 12,312 + … + 12,390
Aliquot sequence: 988,040 1,367,440 1,812,044 1,603,060 1,763,408 1,673,872 1,590,428 1,635,172 1,933,148 2,014,852 2,045,372 2,287,012 2,768,220 7,627,620 21,273,756 35,738,724 59,892,252 — unresolved within range

Continued fraction of √n

√988,040 = [994; (497, 1988)]

Period length 2 — the block in parentheses repeats forever.

Representations

In words
nine hundred eighty-eight thousand forty
Ordinal
988040th
Binary
11110001001110001000
Octal
3611610
Hexadecimal
0xF1388
Base64
DxOI
One's complement
4,293,979,255 (32-bit)
Scientific notation
9.8804 × 10⁵
As a duration
988,040 s = 11 days, 10 hours, 27 minutes, 20 seconds
In other bases
ternary (3) 1212012100002
quaternary (4) 3301032020
quinary (5) 223104130
senary (6) 33102132
septenary (7) 11253404
nonary (9) 1765302
undecimal (11) 615369
duodecimal (12) 3b7948
tridecimal (13) 287951
tetradecimal (14) 1ba104
pentadecimal (15) 147b45

As an angle

988,040° = 2,744 × 360° + 200°
200° ≈ 3.491 rad
Compass bearing: SSW (south-southwest)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋
Egyptian hieroglyphic
𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓎆𓎆𓎆𓎆
Greek (Milesian)
͵ϡπημʹ
Chinese
九十八萬八千零四十
Chinese (financial)
玖拾捌萬捌仟零肆拾
In other modern scripts
Eastern Arabic ٩٨٨٠٤٠ Devanagari ९८८०४० Bengali ৯৮৮০৪০ Tamil ௯௮௮௦௪௦ Thai ๙๘๘๐๔๐ Tibetan ༩༨༨༠༤༠ Khmer ៩៨៨០៤០ Lao ໙໘໘໐໔໐ Burmese ၉၈၈၀၄၀

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 988040, here are decompositions:

  • 7 + 988033 = 988040
  • 19 + 988021 = 988040
  • 43 + 987997 = 988040
  • 61 + 987979 = 988040
  • 127 + 987913 = 988040
  • 409 + 987631 = 988040
  • 433 + 987607 = 988040
  • 499 + 987541 = 988040

Showing the first eight; more decompositions exist.

Hex color
#0F1388
RGB(15, 19, 136)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.19.136.

Address
0.15.19.136
Class
reserved
IPv4-mapped IPv6
::ffff:0.15.19.136

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 988,040 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°.