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1,026,728

1,026,728 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.).

1,026,728 (one million twenty-six thousand seven hundred twenty-eight) is an even 7-digit number. It is a composite number with 8 divisors, and factors as 2³ × 128,341. Written other ways, in hexadecimal, 0xFAAA8.

Deficient Number Odious Number Pernicious Number Refactorable Number

Interestingness

Properties

Parity
Even
Digit count
7
Digit sum
26
Digit product
0
Digital root
8
Palindrome
No
Bit width
20 bits
Reversed
8,276,201
Square (n²)
1,054,170,385,984
Cube (n³)
1,082,346,252,060,580,352
Divisor count
8
σ(n) — sum of divisors
1,925,130
φ(n) — Euler's totient
513,360
Sum of prime factors
128,347

Primality

Prime factorization: 2 3 × 128341

Nearest primes: 1,026,709 (−19) · 1,026,733 (+5)

Divisors & multiples

All divisors (8)
1 · 2 · 4 · 8 · 128341 · 256682 · 513364 (half) · 1026728
Aliquot sum (sum of proper divisors): 898,402
Factor pairs (a × b = 1,026,728)
1 × 1026728
2 × 513364
4 × 256682
8 × 128341
First multiples
1,026,728 · 2,053,456 (double) · 3,080,184 · 4,106,912 · 5,133,640 · 6,160,368 · 7,187,096 · 8,213,824 · 9,240,552 · 10,267,280

Sums & aliquot sequence

As a sum of two squares: 598² + 818²
As consecutive integers: 64,163 + 64,164 + … + 64,178
Aliquot sequence: 1,026,728 898,402 449,204 467,404 467,460 1,213,128 2,718,072 5,696,568 10,638,432 24,843,168 55,903,680 172,330,560 432,133,560 972,301,680 2,759,504,112 5,372,468,464 6,093,261,968 — unresolved within range

Continued fraction of √n

√1,026,728 = [1013; (3, 1, 1, 1, 1, 1, 87, 2, 25, 6, 2, 3, 2, 1, 2, 2, 3, 2, 2, 1, 3, 2, 4, 1, …)]

Representations

In words
one million twenty-six thousand seven hundred twenty-eight
Ordinal
1026728th
Binary
11111010101010101000
Octal
3725250
Hexadecimal
0xFAAA8
Base64
D6qo
One's complement
4,293,940,567 (32-bit)
Scientific notation
1.026728 × 10⁶
As a duration
1,026,728 s = 11 days, 21 hours, 12 minutes, 8 seconds
In other bases
ternary (3) 1221011101222
quaternary (4) 3322222220
quinary (5) 230323403
senary (6) 34001212
septenary (7) 11504243
nonary (9) 1834358
undecimal (11) 64143a
duodecimal (12) 416208
tridecimal (13) 29c441
tetradecimal (14) 1ca25a
pentadecimal (15) 154338

As an angle

1,026,728° = 2,852 × 360° + 8°
8° ≈ 0.14 rad
Compass bearing: N (north)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹 𒌋𒁹𒁹 𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic
𓁨𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
Chinese
一百零二萬六千七百二十八
Chinese (financial)
壹佰零貳萬陸仟柒佰貳拾捌
In other modern scripts
Eastern Arabic ١٠٢٦٧٢٨ Devanagari १०२६७२८ Bengali ১০২৬৭২৮ Tamil ௧௦௨௬௭௨௮ Thai ๑๐๒๖๗๒๘ Tibetan ༡༠༢༦༧༢༨ Khmer ១០២៦៧២៨ Lao ໑໐໒໖໗໒໘ Burmese ၁၀၂၆၇၂၈

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1026728, here are decompositions:

  • 19 + 1026709 = 1026728
  • 61 + 1026667 = 1026728
  • 67 + 1026661 = 1026728
  • 151 + 1026577 = 1026728
  • 181 + 1026547 = 1026728
  • 271 + 1026457 = 1026728
  • 337 + 1026391 = 1026728
  • 397 + 1026331 = 1026728

Showing the first eight; more decompositions exist.

Hex color
#0FAAA8
RGB(15, 170, 168)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.170.168.

Address
0.15.170.168
Class
reserved
IPv4-mapped IPv6
::ffff:0.15.170.168

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

Possible date

Could be parsed as a date. Most likely interpretation: Monday, January 2, 6728 (MDDYYYY (US, single-digit month)).

Other possible interpretations (3)
  • 6728-02-01 (DMMYYYY (Euro, single-digit day))
  • 6728-10-02 (MMDYYYY (US, single-digit day))
  • 6728-02-10 (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 1,026,728 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°.