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528,804

528,804 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.).

528,804 (five hundred twenty-eight thousand eight hundred four) is an even 6-digit number. It is a composite number with 36 divisors, and factors as 2² × 3² × 37 × 397. Its proper divisors sum to 847,480, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x811A4.

Abundant Number Cube-Free Evil Number Practical Number Recamán's Sequence Refactorable Number Semiperfect Number

Interestingness

Properties

Parity
Even
Digit count
6
Digit sum
27
Digit product
0
Digital root
9
Palindrome
No
Bit width
20 bits
Reversed
408,825
Recamán's sequence
a(171,004) = 528,804
Square (n²)
279,633,670,416
Cube (n³)
147,871,403,450,662,464
Divisor count
36
σ(n) — sum of divisors
1,376,284
φ(n) — Euler's totient
171,072
Sum of prime factors
444

Primality

Prime factorization: 2 2 × 3 2 × 37 × 397

Nearest primes: 528,799 (−5) · 528,811 (+7)

Divisors & multiples

All divisors (36)
1 · 2 · 3 · 4 · 6 · 9 · 12 · 18 · 36 · 37 · 74 · 111 · 148 · 222 · 333 · 397 · 444 · 666 · 794 · 1191 · 1332 · 1588 · 2382 · 3573 · 4764 · 7146 · 14292 · 14689 · 29378 · 44067 · 58756 · 88134 · 132201 · 176268 · 264402 (half) · 528804
Aliquot sum (sum of proper divisors): 847,480
Factor pairs (a × b = 528,804)
1 × 528804
2 × 264402
3 × 176268
4 × 132201
6 × 88134
9 × 58756
12 × 44067
18 × 29378
36 × 14689
37 × 14292
74 × 7146
111 × 4764
148 × 3573
222 × 2382
333 × 1588
397 × 1332
444 × 1191
666 × 794
First multiples
528,804 · 1,057,608 (double) · 1,586,412 · 2,115,216 · 2,644,020 · 3,172,824 · 3,701,628 · 4,230,432 · 4,759,236 · 5,288,040

Sums & aliquot sequence

As a sum of two squares: 102² + 720² = 330² + 648²
As consecutive integers: 176,267 + 176,268 + 176,269 66,097 + 66,098 + … + 66,104 58,752 + 58,753 + … + 58,760 22,022 + 22,023 + … + 22,045
Aliquot sequence: 528,804 847,480 1,059,440 1,752,880 2,322,752 2,286,586 1,150,694 580,306 294,314 175,702 92,498 66,094 47,234 34,846 28,514 15,226 8,678 — unresolved within range

Continued fraction of √n

√528,804 = [727; (5, 3, 2, 8, 1, 1, 1, 11, 2, 1, 2, 1, 4, 1, 1, 3, 1, 1, 1, 1, 1, 2, 5, 4, …)]

Representations

In words
five hundred twenty-eight thousand eight hundred four
Ordinal
528804th
Binary
10000001000110100100
Octal
2010644
Hexadecimal
0x811A4
Base64
CBGk
One's complement
4,294,438,491 (32-bit)
Scientific notation
5.28804 × 10⁵
As a duration
528,804 s = 6 days, 2 hours, 53 minutes, 24 seconds
In other bases
ternary (3) 222212101100
quaternary (4) 2001012210
quinary (5) 113410204
senary (6) 15200100
septenary (7) 4331463
nonary (9) 885340
undecimal (11) 331331
duodecimal (12) 216030
tridecimal (13) 156903
tetradecimal (14) da9da
pentadecimal (15) a6a39

As an angle

528,804° = 1,468 × 360° + 324°
324° ≈ 5.655 rad
Compass bearing: NW (northwest)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹
Egyptian hieroglyphic
𓆐𓆐𓆐𓆐𓆐𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓏺𓏺𓏺𓏺
Greek (Milesian)
͵φκηωδʹ
Chinese
五十二萬八千八百零四
Chinese (financial)
伍拾貳萬捌仟捌佰零肆
In other modern scripts
Eastern Arabic ٥٢٨٨٠٤ Devanagari ५२८८०४ Bengali ৫২৮৮০৪ Tamil ௫௨௮௮௦௪ Thai ๕๒๘๘๐๔ Tibetan ༥༢༨༨༠༤ Khmer ៥២៨៨០៤ Lao ໕໒໘໘໐໔ Burmese ၅၂၈၈၀၄

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 528804, here are decompositions:

  • 5 + 528799 = 528804
  • 13 + 528791 = 528804
  • 41 + 528763 = 528804
  • 97 + 528707 = 528804
  • 113 + 528691 = 528804
  • 131 + 528673 = 528804
  • 137 + 528667 = 528804
  • 173 + 528631 = 528804

Showing the first eight; more decompositions exist.

Hex color
#0811A4
RGB(8, 17, 164)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.8.17.164.

Address
0.8.17.164
Class
reserved
IPv4-mapped IPv6
::ffff:0.8.17.164

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 528,804 and was likely granted around 1894.

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

Position in π

The digit sequence 528804 first appears in π at position 934,575 of the decimal expansion (the 934,575ordinal-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°.