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1,028,828

1,028,828 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.).

1,028,828 (one million twenty-eight thousand eight hundred twenty-eight) is an even 7-digit number. It is a composite number with 12 divisors, and factors as 2² × 31 × 8,297. Written other ways, in hexadecimal, 0xFB2DC.

Arithmetic Number Cube-Free Deficient Number Odious Number Pernicious Number Self Number

Interestingness

Properties

Parity
Even
Digit count
7
Digit sum
29
Digit product
0
Digital root
2
Palindrome
No
Bit width
20 bits
Reversed
8,288,201
Square (n²)
1,058,487,053,584
Cube (n³)
1,089,001,118,364,719,552
Divisor count
12
σ(n) — sum of divisors
1,858,752
φ(n) — Euler's totient
497,760
Sum of prime factors
8,332

Primality

Prime factorization: 2 2 × 31 × 8297

Nearest primes: 1,028,809 (−19) · 1,028,837 (+9)

Divisors & multiples

All divisors (12)
1 · 2 · 4 · 31 · 62 · 124 · 8297 · 16594 · 33188 · 257207 · 514414 (half) · 1028828
Aliquot sum (sum of proper divisors): 829,924
Factor pairs (a × b = 1,028,828)
1 × 1028828
2 × 514414
4 × 257207
31 × 33188
62 × 16594
124 × 8297
First multiples
1,028,828 · 2,057,656 (double) · 3,086,484 · 4,115,312 · 5,144,140 · 6,172,968 · 7,201,796 · 8,230,624 · 9,259,452 · 10,288,280

Sums & aliquot sequence

As consecutive integers: 128,600 + 128,601 + … + 128,607 33,173 + 33,174 + … + 33,203 4,025 + 4,026 + … + 4,272
Aliquot sequence: 1,028,828 829,924 622,450 560,510 492,706 278,558 206,146 108,494 63,874 33,146 16,576 22,032 45,486 73,386 92,598 121,674 156,534 — unresolved within range

Continued fraction of √n

√1,028,828 = [1014; (3, 4, 1, 3, 2, 10, 14, 2, 183, 1, 14, 1, 46, 4, 5, 1, 7, 2, 1, 16, 11, 1, 2, 1, …)]

Representations

In words
one million twenty-eight thousand eight hundred twenty-eight
Ordinal
1028828th
Binary
11111011001011011100
Octal
3731334
Hexadecimal
0xFB2DC
Base64
D7Lc
One's complement
4,293,938,467 (32-bit)
Scientific notation
1.028828 × 10⁶
As a duration
1,028,828 s = 11 days, 21 hours, 47 minutes, 8 seconds
In other bases
ternary (3) 1221021021202
quaternary (4) 3323023130
quinary (5) 230410303
senary (6) 34015032
septenary (7) 11513333
nonary (9) 1837252
undecimal (11) 642a79
duodecimal (12) 417478
tridecimal (13) 2a0398
tetradecimal (14) 1cad1a
pentadecimal (15) 154c88

As an angle

1,028,828° = 2,857 × 360° + 308°
308° ≈ 5.376 rad
Compass bearing: NW (northwest)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic
𓁨𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
Chinese
一百零二萬八千八百二十八
Chinese (financial)
壹佰零貳萬捌仟捌佰貳拾捌
In other modern scripts
Eastern Arabic ١٠٢٨٨٢٨ Devanagari १०२८८२८ Bengali ১০২৮৮২৮ Tamil ௧௦௨௮௮௨௮ Thai ๑๐๒๘๘๒๘ Tibetan ༡༠༢༨༨༢༨ Khmer ១០២៨៨២៨ Lao ໑໐໒໘໘໒໘ Burmese ၁၀၂၈၈၂၈

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1028828, here are decompositions:

  • 19 + 1028809 = 1028828
  • 67 + 1028761 = 1028828
  • 79 + 1028749 = 1028828
  • 181 + 1028647 = 1028828
  • 211 + 1028617 = 1028828
  • 271 + 1028557 = 1028828
  • 349 + 1028479 = 1028828
  • 439 + 1028389 = 1028828

Showing the first eight; more decompositions exist.

Hex color
#0FB2DC
RGB(15, 178, 220)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.178.220.

Address
0.15.178.220
Class
reserved
IPv4-mapped IPv6
::ffff:0.15.178.220

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

Possible date

Could be parsed as a date. Most likely interpretation: Sunday, January 2, 8828 (MDDYYYY (US, single-digit month)).

Other possible interpretations (3)
  • 8828-02-01 (DMMYYYY (Euro, single-digit day))
  • 8828-10-02 (MMDYYYY (US, single-digit day))
  • 8828-02-10 (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 1,028,828 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°.