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1,028,664

1,028,664 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.).

1,028,664 (one million twenty-eight thousand six hundred sixty-four) is an even 7-digit number. It is a composite number with 96 divisors, and factors as 2³ × 3² × 7 × 13 × 157. Its proper divisors sum to 2,422,056, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0xFB238.

Abundant Number Arithmetic Number Gapful Number Odious Number Pernicious Number Practical Number Weird Number

Interestingness

Properties

Parity
Even
Digit count
7
Digit sum
27
Digit product
0
Digital root
9
Palindrome
No
Bit width
20 bits
Reversed
4,668,201
Square (n²)
1,058,149,624,896
Cube (n³)
1,088,480,425,744,018,944
Divisor count
96
σ(n) — sum of divisors
3,450,720
φ(n) — Euler's totient
269,568
Sum of prime factors
189

Primality

Prime factorization: 2 3 × 3 2 × 7 × 13 × 157

Nearest primes: 1,028,663 (−1) · 1,028,669 (+5)

Divisors & multiples

All divisors (96)
1 · 2 · 3 · 4 · 6 · 7 · 8 · 9 · 12 · 13 · 14 · 18 · 21 · 24 · 26 · 28 · 36 · 39 · 42 · 52 · 56 · 63 · 72 · 78 · 84 · 91 · 104 · 117 · 126 · 156 · 157 · 168 · 182 · 234 · 252 · 273 · 312 · 314 · 364 · 468 · 471 · 504 · 546 · 628 · 728 · 819 · 936 · 942 · 1092 · 1099 · 1256 · 1413 · 1638 · 1884 · 2041 · 2184 · 2198 · 2826 · 3276 · 3297 · 3768 · 4082 · 4396 · 5652 · 6123 · 6552 · 6594 · 8164 · 8792 · 9891 · 11304 · 12246 · 13188 · 14287 · 16328 · 18369 · 19782 · 24492 · 26376 · 28574 · 36738 · 39564 · 42861 · 48984 · 57148 · 73476 · 79128 · 85722 · 114296 · 128583 · 146952 · 171444 · 257166 · 342888 · 514332 (half) · 1028664
Aliquot sum (sum of proper divisors): 2,422,056
Factor pairs (a × b = 1,028,664)
1 × 1028664
2 × 514332
3 × 342888
4 × 257166
6 × 171444
7 × 146952
8 × 128583
9 × 114296
12 × 85722
13 × 79128
14 × 73476
18 × 57148
21 × 48984
24 × 42861
26 × 39564
28 × 36738
36 × 28574
39 × 26376
42 × 24492
52 × 19782
56 × 18369
63 × 16328
72 × 14287
78 × 13188
84 × 12246
91 × 11304
104 × 9891
117 × 8792
126 × 8164
156 × 6594
157 × 6552
168 × 6123
182 × 5652
234 × 4396
252 × 4082
273 × 3768
312 × 3297
314 × 3276
364 × 2826
468 × 2198
471 × 2184
504 × 2041
546 × 1884
628 × 1638
728 × 1413
819 × 1256
936 × 1099
942 × 1092
First multiples
1,028,664 · 2,057,328 (double) · 3,085,992 · 4,114,656 · 5,143,320 · 6,171,984 · 7,200,648 · 8,229,312 · 9,257,976 · 10,286,640

Sums & aliquot sequence

As consecutive integers: 342,887 + 342,888 + 342,889 146,949 + 146,950 + … + 146,955 114,292 + 114,293 + … + 114,300 79,122 + 79,123 + … + 79,134
Aliquot sequence: 1,028,664 2,422,056 5,037,144 9,355,176 16,849,794 19,442,238 20,839,770 44,380,710 93,931,002 135,682,470 312,154,218 364,179,960 841,799,880 2,071,556,280 4,667,699,880 10,855,167,480 — keeps growing

Continued fraction of √n

√1,028,664 = [1014; (4, 2, 1, 224, 1, 2, 4, 2028)]

Period length 8 — the block in parentheses repeats forever.

Representations

In words
one million twenty-eight thousand six hundred sixty-four
Ordinal
1028664th
Binary
11111011001000111000
Octal
3731070
Hexadecimal
0xFB238
Base64
D7I4
One's complement
4,293,938,631 (32-bit)
Scientific notation
1.028664 × 10⁶
As a duration
1,028,664 s = 11 days, 21 hours, 44 minutes, 24 seconds
In other bases
ternary (3) 1221021001200
quaternary (4) 3323020320
quinary (5) 230404124
senary (6) 34014200
septenary (7) 11513010
nonary (9) 1837050
undecimal (11) 64293a
duodecimal (12) 417360
tridecimal (13) 2a02a0
tetradecimal (14) 1cac40
pentadecimal (15) 154bc9

As an angle

1,028,664° = 2,857 × 360° + 144°
144° ≈ 2.513 rad
Compass bearing: SE (southeast)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹
Egyptian hieroglyphic
𓁨𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺
Chinese
一百零二萬八千六百六十四
Chinese (financial)
壹佰零貳萬捌仟陸佰陸拾肆
In other modern scripts
Eastern Arabic ١٠٢٨٦٦٤ Devanagari १०२८६६४ Bengali ১০২৮৬৬৪ Tamil ௧௦௨௮௬௬௪ Thai ๑๐๒๘๖๖๔ Tibetan ༡༠༢༨༦༦༤ Khmer ១០២៨៦៦៤ Lao ໑໐໒໘໖໖໔ Burmese ၁၀၂၈၆၆၄

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1028664, here are decompositions:

  • 17 + 1028647 = 1028664
  • 47 + 1028617 = 1028664
  • 67 + 1028597 = 1028664
  • 83 + 1028581 = 1028664
  • 103 + 1028561 = 1028664
  • 107 + 1028557 = 1028664
  • 191 + 1028473 = 1028664
  • 193 + 1028471 = 1028664

Showing the first eight; more decompositions exist.

Hex color
#0FB238
RGB(15, 178, 56)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.178.56.

Address
0.15.178.56
Class
reserved
IPv4-mapped IPv6
::ffff:0.15.178.56

Unspecified address (0.0.0.0/8) — "this network" placeholder.

Possible date

Could be parsed as a date. Most likely interpretation: Saturday, January 2, 8664 (MDDYYYY (US, single-digit month)).

Other possible interpretations (3)
  • 8664-02-01 (DMMYYYY (Euro, single-digit day))
  • 8664-10-02 (MMDYYYY (US, single-digit day))
  • 8664-02-10 (DDMYYYY (Euro, single-digit month))
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 1,028,664 and was likely granted around 1912.

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°.