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1,024,728

1,024,728 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.).

1,024,728 (one million twenty-four thousand seven hundred twenty-eight) is an even 7-digit number. It is a composite number with 16 divisors, and factors as 2³ × 3 × 42,697. Its proper divisors sum to 1,537,152, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0xFA2D8.

Abundant Number Harshad / Niven Moran Number Odious Number Pernicious Number Semiperfect Number

Interestingness

Properties

Parity
Even
Digit count
7
Digit sum
24
Digit product
0
Digital root
6
Palindrome
No
Bit width
20 bits
Reversed
8,274,201
Square (n²)
1,050,067,473,984
Cube (n³)
1,076,033,542,480,676,352
Divisor count
16
σ(n) — sum of divisors
2,561,880
φ(n) — Euler's totient
341,568
Sum of prime factors
42,706

Primality

Prime factorization: 2 3 × 3 × 42697

Nearest primes: 1,024,721 (−7) · 1,024,729 (+1)

Divisors & multiples

All divisors (16)
1 · 2 · 3 · 4 · 6 · 8 · 12 · 24 · 42697 · 85394 · 128091 · 170788 · 256182 · 341576 · 512364 (half) · 1024728
Aliquot sum (sum of proper divisors): 1,537,152
Factor pairs (a × b = 1,024,728)
1 × 1024728
2 × 512364
3 × 341576
4 × 256182
6 × 170788
8 × 128091
12 × 85394
24 × 42697
First multiples
1,024,728 · 2,049,456 (double) · 3,074,184 · 4,098,912 · 5,123,640 · 6,148,368 · 7,173,096 · 8,197,824 · 9,222,552 · 10,247,280

Sums & aliquot sequence

As consecutive integers: 341,575 + 341,576 + 341,577 64,038 + 64,039 + … + 64,053 21,325 + 21,326 + … + 21,372
Aliquot sequence: 1,024,728 1,537,152 2,546,928 4,900,512 7,963,584 15,201,216 31,941,184 38,467,616 45,031,072 47,444,360 62,194,000 103,748,504 90,779,956 70,689,744 128,514,768 205,922,160 492,028,704 — unresolved within range

Continued fraction of √n

√1,024,728 = [1012; (3, 2, 6, 1, 9, 1, 2, 1, 3, 3, 1, 1, 3, 1, 1, 1, 16, 1, 4, 2, 1, 11, 12, 26, …)]

Representations

In words
one million twenty-four thousand seven hundred twenty-eight
Ordinal
1024728th
Binary
11111010001011011000
Octal
3721330
Hexadecimal
0xFA2D8
Base64
D6LY
One's complement
4,293,942,567 (32-bit)
Scientific notation
1.024728 × 10⁶
As a duration
1,024,728 s = 11 days, 20 hours, 38 minutes, 48 seconds
In other bases
ternary (3) 1221001122220
quaternary (4) 3322023120
quinary (5) 230242403
senary (6) 33544040
septenary (7) 11465355
nonary (9) 1831586
undecimal (11) 63a991
duodecimal (12) 415020
tridecimal (13) 29b563
tetradecimal (14) 1c962c
pentadecimal (15) 153953

As an angle

1,024,728° = 2,846 × 360° + 168°
168° ≈ 2.932 rad
Compass bearing: SSE (south-southeast)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic
𓁨𓂍𓂍𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
Chinese
一百零二萬四千七百二十八
Chinese (financial)
壹佰零貳萬肆仟柒佰貳拾捌
In other modern scripts
Eastern Arabic ١٠٢٤٧٢٨ Devanagari १०२४७२८ Bengali ১০২৪৭২৮ Tamil ௧௦௨௪௭௨௮ Thai ๑๐๒๔๗๒๘ Tibetan ༡༠༢༤༧༢༨ Khmer ១០២៤៧២៨ Lao ໑໐໒໔໗໒໘ Burmese ၁၀၂၄၇၂၈

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1024728, here are decompositions:

  • 7 + 1024721 = 1024728
  • 17 + 1024711 = 1024728
  • 31 + 1024697 = 1024728
  • 59 + 1024669 = 1024728
  • 137 + 1024591 = 1024728
  • 139 + 1024589 = 1024728
  • 149 + 1024579 = 1024728
  • 151 + 1024577 = 1024728

Showing the first eight; more decompositions exist.

Hex color
#0FA2D8
RGB(15, 162, 216)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.162.216.

Address
0.15.162.216
Class
reserved
IPv4-mapped IPv6
::ffff:0.15.162.216

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

Possible date

Could be parsed as a date. Most likely interpretation: Monday, January 2, 4728 (MDDYYYY (US, single-digit month)).

Other possible interpretations (3)
  • 4728-02-01 (DMMYYYY (Euro, single-digit day))
  • 4728-10-02 (MMDYYYY (US, single-digit day))
  • 4728-02-10 (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 1,024,728 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°.