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1,028,200

1,028,200 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.).

1,028,200 (one million twenty-eight thousand two hundred) is an even 7-digit number. It is a composite number with 48 divisors, and factors as 2³ × 5² × 53 × 97. Its proper divisors sum to 1,432,580, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0xFB068.

Abundant Number Evil Number Gapful Number Practical Number Semiperfect Number

Interestingness

Properties

Parity
Even
Digit count
7
Digit sum
13
Digit product
0
Digital root
4
Palindrome
No
Bit width
20 bits
Reversed
28,201
Square (n²)
1,057,195,240,000
Cube (n³)
1,087,008,145,768,000,000
Divisor count
48
σ(n) — sum of divisors
2,460,780
φ(n) — Euler's totient
399,360
Sum of prime factors
166

Primality

Prime factorization: 2 3 × 5 2 × 53 × 97

Nearest primes: 1,028,191 (−9) · 1,028,201 (+1)

Divisors & multiples

All divisors (48)
1 · 2 · 4 · 5 · 8 · 10 · 20 · 25 · 40 · 50 · 53 · 97 · 100 · 106 · 194 · 200 · 212 · 265 · 388 · 424 · 485 · 530 · 776 · 970 · 1060 · 1325 · 1940 · 2120 · 2425 · 2650 · 3880 · 4850 · 5141 · 5300 · 9700 · 10282 · 10600 · 19400 · 20564 · 25705 · 41128 · 51410 · 102820 · 128525 · 205640 · 257050 · 514100 (half) · 1028200
Aliquot sum (sum of proper divisors): 1,432,580
Factor pairs (a × b = 1,028,200)
1 × 1028200
2 × 514100
4 × 257050
5 × 205640
8 × 128525
10 × 102820
20 × 51410
25 × 41128
40 × 25705
50 × 20564
53 × 19400
97 × 10600
100 × 10282
106 × 9700
194 × 5300
200 × 5141
212 × 4850
265 × 3880
388 × 2650
424 × 2425
485 × 2120
530 × 1940
776 × 1325
970 × 1060
First multiples
1,028,200 · 2,056,400 (double) · 3,084,600 · 4,112,800 · 5,141,000 · 6,169,200 · 7,197,400 · 8,225,600 · 9,253,800 · 10,282,000

Sums & aliquot sequence

As a sum of two squares: 2² + 1,014² = 90² + 1,010² = 282² + 974² = 534² + 862²
As consecutive integers: 205,638 + 205,639 + 205,640 + 205,641 + 205,642 64,255 + 64,256 + … + 64,270 41,116 + 41,117 + … + 41,140 19,374 + 19,375 + … + 19,426
Aliquot sequence: 1,028,200 1,432,580 1,615,612 1,511,204 1,133,410 906,746 533,434 339,494 172,906 86,456 78,784 77,680 103,112 90,238 45,122 39,550 45,266 — unresolved within range

Continued fraction of √n

√1,028,200 = [1014; (507, 2028)]

Period length 2 — the block in parentheses repeats forever.

Representations

In words
one million twenty-eight thousand two hundred
Ordinal
1028200th
Binary
11111011000001101000
Octal
3730150
Hexadecimal
0xFB068
Base64
D7Bo
One's complement
4,293,939,095 (32-bit)
Scientific notation
1.0282 × 10⁶
As a duration
1,028,200 s = 11 days, 21 hours, 36 minutes, 40 seconds
In other bases
ternary (3) 1221020102111
quaternary (4) 3323001220
quinary (5) 230400300
senary (6) 34012104
septenary (7) 11511445
nonary (9) 1836374
undecimal (11) 642558
duodecimal (12) 417034
tridecimal (13) 2a0004
tetradecimal (14) 1ca9cc
pentadecimal (15) 1549ba

As an angle

1,028,200° = 2,856 × 360° + 40°
40° ≈ 0.698 rad
Compass bearing: NE (northeast)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋
Egyptian hieroglyphic
𓁨𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢
Chinese
一百零二萬八千二百
Chinese (financial)
壹佰零貳萬捌仟貳佰
In other modern scripts
Eastern Arabic ١٠٢٨٢٠٠ Devanagari १०२८२०० Bengali ১০২৮২০০ Tamil ௧௦௨௮௨௦௦ Thai ๑๐๒๘๒๐๐ Tibetan ༡༠༢༨༢༠༠ Khmer ១០២៨២០០ Lao ໑໐໒໘໒໐໐ Burmese ၁၀၂၈၂၀၀

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1028200, here are decompositions:

  • 11 + 1028189 = 1028200
  • 59 + 1028141 = 1028200
  • 71 + 1028129 = 1028200
  • 83 + 1028117 = 1028200
  • 101 + 1028099 = 1028200
  • 137 + 1028063 = 1028200
  • 149 + 1028051 = 1028200
  • 197 + 1028003 = 1028200

Showing the first eight; more decompositions exist.

Hex color
#0FB068
RGB(15, 176, 104)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.176.104.

Address
0.15.176.104
Class
reserved
IPv4-mapped IPv6
::ffff:0.15.176.104

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

Possible date

Could be parsed as a date. Most likely interpretation: Thursday, January 2, 8200 (MDDYYYY (US, single-digit month)).

Other possible interpretations (3)
  • 8200-02-01 (DMMYYYY (Euro, single-digit day))
  • 8200-10-02 (MMDYYYY (US, single-digit day))
  • 8200-02-10 (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 1,028,200 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°.