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556,320

556,320 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.).

556,320 (five hundred fifty-six thousand three hundred twenty) is an even 6-digit number. It is a composite number with 96 divisors, and factors as 2⁵ × 3 × 5 × 19 × 61. Its proper divisors sum to 1,318,560, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x87D20.

Abundant Number Arithmetic Number Evil Number Practical Number Refactorable Number Weird Number

Interestingness

Properties

Parity
Even
Digit count
6
Digit sum
21
Digit product
0
Digital root
3
Palindrome
No
Bit width
20 bits
Reversed
23,655
Square (n²)
309,491,942,400
Cube (n³)
172,176,557,395,968,000
Divisor count
96
σ(n) — sum of divisors
1,874,880
φ(n) — Euler's totient
138,240
Sum of prime factors
98

Primality

Prime factorization: 2 5 × 3 × 5 × 19 × 61

Nearest primes: 556,313 (−7) · 556,321 (+1)

Divisors & multiples

All divisors (96)
1 · 2 · 3 · 4 · 5 · 6 · 8 · 10 · 12 · 15 · 16 · 19 · 20 · 24 · 30 · 32 · 38 · 40 · 48 · 57 · 60 · 61 · 76 · 80 · 95 · 96 · 114 · 120 · 122 · 152 · 160 · 183 · 190 · 228 · 240 · 244 · 285 · 304 · 305 · 366 · 380 · 456 · 480 · 488 · 570 · 608 · 610 · 732 · 760 · 912 · 915 · 976 · 1140 · 1159 · 1220 · 1464 · 1520 · 1824 · 1830 · 1952 · 2280 · 2318 · 2440 · 2928 · 3040 · 3477 · 3660 · 4560 · 4636 · 4880 · 5795 · 5856 · 6954 · 7320 · 9120 · 9272 · 9760 · 11590 · 13908 · 14640 · 17385 · 18544 · 23180 · 27816 · 29280 · 34770 · 37088 · 46360 · 55632 · 69540 · 92720 · 111264 · 139080 · 185440 · 278160 (half) · 556320
Aliquot sum (sum of proper divisors): 1,318,560
Factor pairs (a × b = 556,320)
1 × 556320
2 × 278160
3 × 185440
4 × 139080
5 × 111264
6 × 92720
8 × 69540
10 × 55632
12 × 46360
15 × 37088
16 × 34770
19 × 29280
20 × 27816
24 × 23180
30 × 18544
32 × 17385
38 × 14640
40 × 13908
48 × 11590
57 × 9760
60 × 9272
61 × 9120
76 × 7320
80 × 6954
95 × 5856
96 × 5795
114 × 4880
120 × 4636
122 × 4560
152 × 3660
160 × 3477
183 × 3040
190 × 2928
228 × 2440
240 × 2318
244 × 2280
285 × 1952
304 × 1830
305 × 1824
366 × 1520
380 × 1464
456 × 1220
480 × 1159
488 × 1140
570 × 976
608 × 915
610 × 912
732 × 760
First multiples
556,320 · 1,112,640 (double) · 1,668,960 · 2,225,280 · 2,781,600 · 3,337,920 · 3,894,240 · 4,450,560 · 5,006,880 · 5,563,200

Sums & aliquot sequence

As consecutive integers: 185,439 + 185,440 + 185,441 111,262 + 111,263 + 111,264 + 111,265 + 111,266 37,081 + 37,082 + … + 37,095 29,271 + 29,272 + … + 29,289
Aliquot sequence: 556,320 1,318,560 2,999,712 4,874,784 9,277,536 15,238,032 24,127,008 39,206,640 93,392,016 162,064,848 294,664,848 469,848,720 1,366,998,000 3,102,007,632 4,959,518,064 7,852,570,392 12,862,693,608 — keeps growing

Continued fraction of √n

√556,320 = [745; (1, 6, 1, 1, 1, 1, 2, 1, 5, 1, 14, 1, 5, 1, 2, 1, 1, 1, 1, 6, 1, 1490)]

Period length 22 — the block in parentheses repeats forever.

Representations

In words
five hundred fifty-six thousand three hundred twenty
Ordinal
556320th
Binary
10000111110100100000
Octal
2076440
Hexadecimal
0x87D20
Base64
CH0g
One's complement
4,294,410,975 (32-bit)
Scientific notation
5.5632 × 10⁵
As a duration
556,320 s = 6 days, 10 hours, 32 minutes
In other bases
ternary (3) 1001021010110
quaternary (4) 2013310200
quinary (5) 120300240
senary (6) 15531320
septenary (7) 4504632
nonary (9) 1037113
undecimal (11) 34aa76
duodecimal (12) 229b40
tridecimal (13) 1662ab
tetradecimal (14) 106a52
pentadecimal (15) aec80

As an angle

556,320° = 1,545 × 360° + 120°
120° ≈ 2.094 rad
Compass bearing: ESE (east-southeast)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹 ·
Egyptian hieroglyphic
𓆐𓆐𓆐𓆐𓆐𓂍𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓎆𓎆
Greek (Milesian)
͵φνϛτκʹ
Chinese
五十五萬六千三百二十
Chinese (financial)
伍拾伍萬陸仟參佰貳拾
In other modern scripts
Eastern Arabic ٥٥٦٣٢٠ Devanagari ५५६३२० Bengali ৫৫৬৩২০ Tamil ௫௫௬௩௨௦ Thai ๕๕๖๓๒๐ Tibetan ༥༥༦༣༢༠ Khmer ៥៥៦៣២០ Lao ໕໕໖໓໒໐ Burmese ၅၅၆၃၂၀

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 556320, here are decompositions:

  • 7 + 556313 = 556320
  • 31 + 556289 = 556320
  • 41 + 556279 = 556320
  • 47 + 556273 = 556320
  • 53 + 556267 = 556320
  • 59 + 556261 = 556320
  • 67 + 556253 = 556320
  • 101 + 556219 = 556320

Showing the first eight; more decompositions exist.

Hex color
#087D20
RGB(8, 125, 32)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.8.125.32.

Address
0.8.125.32
Class
reserved
IPv4-mapped IPv6
::ffff:0.8.125.32

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 556,320 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 556320 first appears in π at position 120,688 of the decimal expansion (the 120,688ordinal-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°.