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556,440

556,440 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.).

556,440 (five hundred fifty-six thousand four hundred forty) is an even 6-digit number. It is a composite number with 32 divisors, and factors as 2³ × 3 × 5 × 4,637. Its proper divisors sum to 1,113,240, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x87D98.

Abundant Number Evil Number Harshad / Niven Self Number Semiperfect Number

Interestingness

Properties

Parity
Even
Digit count
6
Digit sum
24
Digit product
0
Digital root
6
Palindrome
No
Bit width
20 bits
Reversed
44,655
Square (n²)
309,625,473,600
Cube (n³)
172,287,998,529,984,000
Divisor count
32
σ(n) — sum of divisors
1,669,680
φ(n) — Euler's totient
148,352
Sum of prime factors
4,651

Primality

Prime factorization: 2 3 × 3 × 5 × 4637

Nearest primes: 556,403 (−37) · 556,441 (+1)

Divisors & multiples

All divisors (32)
1 · 2 · 3 · 4 · 5 · 6 · 8 · 10 · 12 · 15 · 20 · 24 · 30 · 40 · 60 · 120 · 4637 · 9274 · 13911 · 18548 · 23185 · 27822 · 37096 · 46370 · 55644 · 69555 · 92740 · 111288 · 139110 · 185480 · 278220 (half) · 556440
Aliquot sum (sum of proper divisors): 1,113,240
Factor pairs (a × b = 556,440)
1 × 556440
2 × 278220
3 × 185480
4 × 139110
5 × 111288
6 × 92740
8 × 69555
10 × 55644
12 × 46370
15 × 37096
20 × 27822
24 × 23185
30 × 18548
40 × 13911
60 × 9274
120 × 4637
First multiples
556,440 · 1,112,880 (double) · 1,669,320 · 2,225,760 · 2,782,200 · 3,338,640 · 3,895,080 · 4,451,520 · 5,007,960 · 5,564,400

Sums & aliquot sequence

As consecutive integers: 185,479 + 185,480 + 185,481 111,286 + 111,287 + 111,288 + 111,289 + 111,290 37,089 + 37,090 + … + 37,103 34,770 + 34,771 + … + 34,785
Aliquot sequence: 556,440 1,113,240 2,226,840 6,136,680 13,951,320 31,840,680 63,681,720 128,869,320 257,739,000 562,084,680 1,124,169,720 2,248,339,800 5,717,221,800 12,062,667,000 — keeps growing

Continued fraction of √n

√556,440 = [745; (1, 18, 1, 1, 1, 2, 2, 3, 1, 2, 2, 7, 1, 2, 5, 1, 8, 1, 1, 5, 1, 1, 1, 36, …)]

Period length 48 — the block in parentheses repeats forever.

Representations

In words
five hundred fifty-six thousand four hundred forty
Ordinal
556440th
Binary
10000111110110011000
Octal
2076630
Hexadecimal
0x87D98
Base64
CH2Y
One's complement
4,294,410,855 (32-bit)
Scientific notation
5.5644 × 10⁵
As a duration
556,440 s = 6 days, 10 hours, 34 minutes
In other bases
ternary (3) 1001021021220
quaternary (4) 2013312120
quinary (5) 120301230
senary (6) 15532040
septenary (7) 4505163
nonary (9) 1037256
undecimal (11) 350075
duodecimal (12) 22a020
tridecimal (13) 166371
tetradecimal (14) 106ada
pentadecimal (15) aed10

As an angle

556,440° = 1,545 × 360° + 240°
240° ≈ 4.189 rad
Compass bearing: WSW (west-southwest)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹 ·
Egyptian hieroglyphic
𓆐𓆐𓆐𓆐𓆐𓂍𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆
Greek (Milesian)
͵φνϛυμʹ
Chinese
五十五萬六千四百四十
Chinese (financial)
伍拾伍萬陸仟肆佰肆拾
In other modern scripts
Eastern Arabic ٥٥٦٤٤٠ Devanagari ५५६४४० Bengali ৫৫৬৪৪০ Tamil ௫௫௬௪௪௦ Thai ๕๕๖๔๔๐ Tibetan ༥༥༦༤༤༠ Khmer ៥៥៦៤៤០ Lao ໕໕໖໔໔໐ Burmese ၅၅၆၄၄၀

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 556440, here are decompositions:

  • 37 + 556403 = 556440
  • 41 + 556399 = 556440
  • 67 + 556373 = 556440
  • 89 + 556351 = 556440
  • 97 + 556343 = 556440
  • 109 + 556331 = 556440
  • 113 + 556327 = 556440
  • 127 + 556313 = 556440

Showing the first eight; more decompositions exist.

Hex color
#087D98
RGB(8, 125, 152)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.8.125.152.

Address
0.8.125.152
Class
reserved
IPv4-mapped IPv6
::ffff:0.8.125.152

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 556,440 and was likely granted around 1895.

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°.