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978,984

978,984 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.).

978,984 (nine hundred seventy-eight thousand nine hundred eighty-four) is an even 6-digit number. It is a composite number with 24 divisors, and factors as 2³ × 3² × 13,597. Its proper divisors sum to 1,672,626, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0xEF028.

Abundant Number Odious Number Refactorable Number Semiperfect Number

Interestingness

Properties

Parity
Even
Digit count
6
Digit sum
45
Digit product
145,152
Digital root
9
Palindrome
No
Bit width
20 bits
Reversed
489,879
Square (n²)
958,409,672,256
Cube (n³)
938,267,734,583,867,904
Divisor count
24
σ(n) — sum of divisors
2,651,610
φ(n) — Euler's totient
326,304
Sum of prime factors
13,609

Primality

Prime factorization: 2 3 × 3 2 × 13597

Nearest primes: 978,973 (−11) · 978,997 (+13)

Divisors & multiples

All divisors (24)
1 · 2 · 3 · 4 · 6 · 8 · 9 · 12 · 18 · 24 · 36 · 72 · 13597 · 27194 · 40791 · 54388 · 81582 · 108776 · 122373 · 163164 · 244746 · 326328 · 489492 (half) · 978984
Aliquot sum (sum of proper divisors): 1,672,626
Factor pairs (a × b = 978,984)
1 × 978984
2 × 489492
3 × 326328
4 × 244746
6 × 163164
8 × 122373
9 × 108776
12 × 81582
18 × 54388
24 × 40791
36 × 27194
72 × 13597
First multiples
978,984 · 1,957,968 (double) · 2,936,952 · 3,915,936 · 4,894,920 · 5,873,904 · 6,852,888 · 7,831,872 · 8,810,856 · 9,789,840

Sums & aliquot sequence

As a sum of two squares: 150² + 978²
As consecutive integers: 326,327 + 326,328 + 326,329 108,772 + 108,773 + … + 108,780 61,179 + 61,180 + … + 61,194 20,372 + 20,373 + … + 20,419
Aliquot sequence: 978,984 1,672,626 1,703,598 1,965,858 2,005,278 2,563,554 3,389,982 3,389,994 3,955,032 6,854,208 11,921,472 23,130,528 37,587,360 80,814,336 134,271,696 239,280,784 230,133,616 — unresolved within range

Continued fraction of √n

√978,984 = [989; (2, 3, 2, 2, 1, 1, 2, 1, 5, 1, 27, 49, 2, 3, 2, 2, 85, 1, 1, 1, 2, 5, 2, 78, …)]

Representations

In words
nine hundred seventy-eight thousand nine hundred eighty-four
Ordinal
978984th
Binary
11101111000000101000
Octal
3570050
Hexadecimal
0xEF028
Base64
DvAo
One's complement
4,293,988,311 (32-bit)
Scientific notation
9.78984 × 10⁵
As a duration
978,984 s = 11 days, 7 hours, 56 minutes, 24 seconds
In other bases
ternary (3) 1211201220200
quaternary (4) 3233000220
quinary (5) 222311414
senary (6) 32552200
septenary (7) 11215116
nonary (9) 1751820
undecimal (11) 609586
duodecimal (12) 3b2660
tridecimal (13) 2837a6
tetradecimal (14) 1b6ab6
pentadecimal (15) 145109

As an angle

978,984° = 2,719 × 360° + 144°
144° ≈ 2.513 rad
Compass bearing: SE (southeast)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹
Egyptian hieroglyphic
𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺
Greek (Milesian)
͵ϡοηϡπδʹ
Chinese
九十七萬八千九百八十四
Chinese (financial)
玖拾柒萬捌仟玖佰捌拾肆
In other modern scripts
Eastern Arabic ٩٧٨٩٨٤ Devanagari ९७८९८४ Bengali ৯৭৮৯৮৪ Tamil ௯௭௮௯௮௪ Thai ๙๗๘๙๘๔ Tibetan ༩༧༨༩༨༤ Khmer ៩៧៨៩៨៤ Lao ໙໗໘໙໘໔ Burmese ၉၇၈၉၈၄

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 978984, here are decompositions:

  • 11 + 978973 = 978984
  • 37 + 978947 = 978984
  • 53 + 978931 = 978984
  • 67 + 978917 = 978984
  • 101 + 978883 = 978984
  • 113 + 978871 = 978984
  • 131 + 978853 = 978984
  • 163 + 978821 = 978984

Showing the first eight; more decompositions exist.

Hex color
#0EF028
RGB(14, 240, 40)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.14.240.40.

Address
0.14.240.40
Class
reserved
IPv4-mapped IPv6
::ffff:0.14.240.40

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 978,984 and was likely granted around 1910.

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°.