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555,840

555,840 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.).

555,840 (five hundred fifty-five thousand eight hundred forty) is an even 6-digit number. It is a composite number with 84 divisors, and factors as 2⁶ × 3² × 5 × 193. Its proper divisors sum to 1,365,924, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x87B40.

Abundant Number Evil Number Practical Number Weird Number

Interestingness

Properties

Parity
Even
Digit count
6
Digit sum
27
Digit product
0
Digital root
9
Palindrome
No
Bit width
20 bits
Reversed
48,555
Square (n²)
308,958,105,600
Cube (n³)
171,731,273,416,704,000
Divisor count
84
σ(n) — sum of divisors
1,921,764
φ(n) — Euler's totient
147,456
Sum of prime factors
216

Primality

Prime factorization: 2 6 × 3 2 × 5 × 193

Nearest primes: 555,829 (−11) · 555,853 (+13)

Divisors & multiples

All divisors (84)
1 · 2 · 3 · 4 · 5 · 6 · 8 · 9 · 10 · 12 · 15 · 16 · 18 · 20 · 24 · 30 · 32 · 36 · 40 · 45 · 48 · 60 · 64 · 72 · 80 · 90 · 96 · 120 · 144 · 160 · 180 · 192 · 193 · 240 · 288 · 320 · 360 · 386 · 480 · 576 · 579 · 720 · 772 · 960 · 965 · 1158 · 1440 · 1544 · 1737 · 1930 · 2316 · 2880 · 2895 · 3088 · 3474 · 3860 · 4632 · 5790 · 6176 · 6948 · 7720 · 8685 · 9264 · 11580 · 12352 · 13896 · 15440 · 17370 · 18528 · 23160 · 27792 · 30880 · 34740 · 37056 · 46320 · 55584 · 61760 · 69480 · 92640 · 111168 · 138960 · 185280 · 277920 (half) · 555840
Aliquot sum (sum of proper divisors): 1,365,924
Factor pairs (a × b = 555,840)
1 × 555840
2 × 277920
3 × 185280
4 × 138960
5 × 111168
6 × 92640
8 × 69480
9 × 61760
10 × 55584
12 × 46320
15 × 37056
16 × 34740
18 × 30880
20 × 27792
24 × 23160
30 × 18528
32 × 17370
36 × 15440
40 × 13896
45 × 12352
48 × 11580
60 × 9264
64 × 8685
72 × 7720
80 × 6948
90 × 6176
96 × 5790
120 × 4632
144 × 3860
160 × 3474
180 × 3088
192 × 2895
193 × 2880
240 × 2316
288 × 1930
320 × 1737
360 × 1544
386 × 1440
480 × 1158
576 × 965
579 × 960
720 × 772
First multiples
555,840 · 1,111,680 (double) · 1,667,520 · 2,223,360 · 2,779,200 · 3,335,040 · 3,890,880 · 4,446,720 · 5,002,560 · 5,558,400

Sums & aliquot sequence

As a sum of two squares: 48² + 744² = 408² + 624²
As consecutive integers: 185,279 + 185,280 + 185,281 111,166 + 111,167 + 111,168 + 111,169 + 111,170 61,756 + 61,757 + … + 61,764 37,049 + 37,050 + … + 37,063
Aliquot sequence: 555,840 1,365,924 2,541,084 4,837,476 9,015,804 18,993,996 38,780,084 38,780,140 61,213,460 99,058,540 138,682,292 169,765,708 170,518,964 217,714,252 240,784,628 250,615,372 250,615,428 — unresolved within range

Continued fraction of √n

√555,840 = [745; (1, 1, 4, 1, 5, 2, 2, 1, 1, 1, 7, 5, 1, 2, 3, 1, 4, 41, 4, 1, 3, 2, 1, 5, …)]

Period length 36 — the block in parentheses repeats forever.

Representations

In words
five hundred fifty-five thousand eight hundred forty
Ordinal
555840th
Binary
10000111101101000000
Octal
2075500
Hexadecimal
0x87B40
Base64
CHtA
One's complement
4,294,411,455 (32-bit)
Scientific notation
5.5584 × 10⁵
As a duration
555,840 s = 6 days, 10 hours, 24 minutes
In other bases
ternary (3) 1001020110200
quaternary (4) 2013231000
quinary (5) 120241330
senary (6) 15525200
septenary (7) 4503345
nonary (9) 1036420
undecimal (11) 34a67a
duodecimal (12) 229800
tridecimal (13) 165ccc
tetradecimal (14) 1067cc
pentadecimal (15) aea60

As an angle

555,840° = 1,544 × 360°
0° ≈ 0 rad
Compass bearing: N (north)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹 ·
Egyptian hieroglyphic
𓆐𓆐𓆐𓆐𓆐𓂍𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆
Greek (Milesian)
͵φνεωμʹ
Chinese
五十五萬五千八百四十
Chinese (financial)
伍拾伍萬伍仟捌佰肆拾
In other modern scripts
Eastern Arabic ٥٥٥٨٤٠ Devanagari ५५५८४० Bengali ৫৫৫৮৪০ Tamil ௫௫௫௮௪௦ Thai ๕๕๕๘๔๐ Tibetan ༥༥༥༨༤༠ Khmer ៥៥៥៨៤០ Lao ໕໕໕໘໔໐ Burmese ၅၅၅၈၄၀

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 555840, here are decompositions:

  • 11 + 555829 = 555840
  • 13 + 555827 = 555840
  • 17 + 555823 = 555840
  • 73 + 555767 = 555840
  • 79 + 555761 = 555840
  • 97 + 555743 = 555840
  • 101 + 555739 = 555840
  • 149 + 555691 = 555840

Showing the first eight; more decompositions exist.

Hex color
#087B40
RGB(8, 123, 64)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.8.123.64.

Address
0.8.123.64
Class
reserved
IPv4-mapped IPv6
::ffff:0.8.123.64

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 555,840 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 555840 first appears in π at position 572,370 of the decimal expansion (the 572,370ordinal-suffix:th 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°.