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550,820

550,820 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.).

550,820 (five hundred fifty thousand eight hundred twenty) is an even 6-digit number. It is a composite number with 12 divisors, and factors as 2² × 5 × 27,541. Its proper divisors sum to 605,944, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x867A4.

Abundant Number Arithmetic Number Cube-Free Harshad / Niven Moran Number Odious Number Semiperfect Number

Interestingness

Properties

Parity
Even
Digit count
6
Digit sum
20
Digit product
0
Digital root
2
Palindrome
No
Bit width
20 bits
Reversed
28,055
Square (n²)
303,402,672,400
Cube (n³)
167,120,260,011,368,000
Divisor count
12
σ(n) — sum of divisors
1,156,764
φ(n) — Euler's totient
220,320
Sum of prime factors
27,550

Primality

Prime factorization: 2 2 × 5 × 27541

Nearest primes: 550,813 (−7) · 550,831 (+11)

Divisors & multiples

All divisors (12)
1 · 2 · 4 · 5 · 10 · 20 · 27541 · 55082 · 110164 · 137705 · 275410 (half) · 550820
Aliquot sum (sum of proper divisors): 605,944
Factor pairs (a × b = 550,820)
1 × 550820
2 × 275410
4 × 137705
5 × 110164
10 × 55082
20 × 27541
First multiples
550,820 · 1,101,640 (double) · 1,652,460 · 2,203,280 · 2,754,100 · 3,304,920 · 3,855,740 · 4,406,560 · 4,957,380 · 5,508,200

Sums & aliquot sequence

As a sum of two squares: 16² + 742² = 458² + 584²
As consecutive integers: 110,162 + 110,163 + 110,164 + 110,165 + 110,166 68,849 + 68,850 + … + 68,856 13,751 + 13,752 + … + 13,790
Aliquot sequence: 550,820 605,944 530,216 472,024 539,576 472,144 483,152 452,986 261,254 186,634 133,334 68,386 37,598 23,962 11,984 14,800 21,718 — unresolved within range

Continued fraction of √n

√550,820 = [742; (5, 1, 3, 1, 15, 1, 1, 13, 9, 1, 3, 9, 1, 50, 3, 1, 1, 4, 1, 1, 1, 9, 3, 6, …)]

Period length 56 — the block in parentheses repeats forever.

Representations

In words
five hundred fifty thousand eight hundred twenty
Ordinal
550820th
Binary
10000110011110100100
Octal
2063644
Hexadecimal
0x867A4
Base64
CGek
One's complement
4,294,416,475 (32-bit)
Scientific notation
5.5082 × 10⁵
As a duration
550,820 s = 6 days, 9 hours, 20 seconds
In other bases
ternary (3) 1000222120202
quaternary (4) 2012132210
quinary (5) 120111240
senary (6) 15450032
septenary (7) 4452614
nonary (9) 1028522
undecimal (11) 346926
duodecimal (12) 226918
tridecimal (13) 16393a
tetradecimal (14) 104a44
pentadecimal (15) ad315

As an angle

550,820° = 1,530 × 360° + 20°
20° ≈ 0.349 rad
Compass bearing: NNE (north-northeast)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹 · 𒌋𒌋
Egyptian hieroglyphic
𓆐𓆐𓆐𓆐𓆐𓂍𓂍𓂍𓂍𓂍𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆
Greek (Milesian)
͵φνωκʹ
Chinese
五十五萬零八百二十
Chinese (financial)
伍拾伍萬零捌佰貳拾
In other modern scripts
Eastern Arabic ٥٥٠٨٢٠ Devanagari ५५०८२० Bengali ৫৫০৮২০ Tamil ௫௫௦௮௨௦ Thai ๕๕๐๘๒๐ Tibetan ༥༥༠༨༢༠ Khmer ៥៥០៨២០ Lao ໕໕໐໘໒໐ Burmese ၅၅၀၈၂၀

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 550820, here are decompositions:

  • 7 + 550813 = 550820
  • 19 + 550801 = 550820
  • 31 + 550789 = 550820
  • 103 + 550717 = 550820
  • 157 + 550663 = 550820
  • 163 + 550657 = 550820
  • 199 + 550621 = 550820
  • 211 + 550609 = 550820

Showing the first eight; more decompositions exist.

Hex color
#0867A4
RGB(8, 103, 164)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.8.103.164.

Address
0.8.103.164
Class
reserved
IPv4-mapped IPv6
::ffff:0.8.103.164

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 550,820 and was likely granted around 1895.

Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.

Position in π

The digit sequence 550820 first appears in π at position 235,122 of the decimal expansion (the 235,122ordinal-suffix:nd digit after the integer 3).

Search range: the first 1,000,000 fractional digits of π. Any 6-digit-or-shorter string is virtually guaranteed to appear in there — the more interesting signal is the position.

Related reading

  • Babylonian numerals — The base-60 cuneiform system that gave us 60 minutes, 60 seconds, and 360°.